When I first started Cat Mail Co., I honestly thought it was going to be one of those relaxing games where you simply sort a few packages, pet some cats, and call it a day. A couple of hours later, my warehouse looked like complete chaos, I was grabbing the wrong parcels, and I had no idea why deliveries kept going wrong.
That’s when I realized the game is much deeper than it looks. Beneath the cozy art style is a surprisingly detailed logistics simulator that rewards good organization far more than quick reactions.
If you’ve already learned the basics and want to make your deliveries smoother, avoid unnecessary mistakes, and uncover some of the game’s hidden mechanics, these are the biggest lessons I wish someone had told me from the start.
Cat Mail Co. Beginner Guide Wiki – Stamp System, Shelf
One of the first things you’ll notice is that Cat Mail Co. doesn’t tell you how to organize your warehouse.
There are no automatic labels, no category markers, and no suggested layout. At first, I simply placed packages wherever there was space. It worked…until the warehouse started filling up.
Eventually every customer request turned into a scavenger hunt.
The solution is surprisingly simple: create your own system and never change it.
For example, you could organize packages by:
- Box size
- Tape color
- Shape
- Thickness
- Weight
The exact system doesn’t matter nearly as much as being consistent.
If large boxes always stay on the left shelf, they’ll eventually become muscle memory. The moment a customer asks for “a package about my size,” your eyes naturally go to the correct area without thinking.
That’s where the game starts feeling effortless.
Pay Attention During the Night
Most players treat nighttime as nothing more than a visual change.
It’s actually much more important than that.
Certain packages reveal details that simply aren’t visible during the day. Instead of rushing through nighttime deliveries, slow down and examine unusual parcels carefully.
Without spoiling too much, many of these mysterious packages connect to the story surrounding the previous mail carrier.
If you enjoy discovering hidden lore instead of just completing deliveries, nighttime becomes one of the most rewarding parts of the game.
Rather than seeing it as another work shift, think of it as investigation time.
Separate Packages by Destination
This single habit probably saved me more time than anything else.
Instead of mixing every outgoing package together, dedicate separate areas for each destination.
For example:
- One section for Port Windy
- Another for Cat Isle
- Another for any future destinations you unlock
When it’s finally time to load the boat, you won’t waste several minutes reading labels one by one.
Everything is already waiting in the correct section.
As delivery volume increases later in the game, this organization method becomes even more valuable.
Use Vertical Space Properly
The warehouse isn’t just wide—it has height.
Many new players ignore vertical storage and end up with cluttered shelves that constantly collapse.
A much better approach is to build stable stacks.
Start with heavier, larger boxes at the bottom.
Then place medium-sized packages above them.
Finally, keep lightweight envelopes and frequently used parcels somewhere easy to grab.
Once you begin thinking vertically, your warehouse suddenly feels much larger without needing any upgrades.
Heavy Packages Always Belong at the Bottom
The physics system in Cat Mail Co. is more realistic than it first appears.
Packages aren’t just decorative objects.
If you place a heavy crate on top of a fragile parcel, don’t be surprised when damaged deliveries start showing up in your shift summary.
The scanner actually gives you most of the information you need.
Pay attention to:
- Heavy packages
- Fragile packages
- Package contents (when available)
A simple rule I eventually adopted was:
- Heavy items stay on the bottom.
- Fragile items stay on top or in their own section.
It’s one of those habits that quickly becomes automatic and saves you from unnecessary penalties.
Prepare Orders Before They’re Requested
One mistake I made early was waiting until customers or the captain asked for something before starting work.
That approach constantly leaves you rushing.
Instead, use quiet moments wisely.
Whenever there’s downtime, you can already:
- Weigh packages
- Apply stamps
- Sort destinations
- Organize outgoing deliveries
Then, when new requests appear, most of the work is already finished.
Cat Mail Co. isn’t designed around speed.
It’s designed around preparation.
The more organized you are beforehand, the calmer every shift feels afterward.
Prioritize the Previous Mail Carrier’s Packages
The old stock sitting in the back of the agency might seem optional.
It isn’t.
Those forgotten deliveries play a major role in both progression and storytelling.
Working through them gradually unlocks:
- New rooms
- Additional tools
- More delivery destinations
- Story discoveries
- Hidden mysteries
If you spend hours only completing ordinary customer requests, you’ll progress much more slowly than players who regularly investigate the abandoned inventory.
Whenever you notice suspicious-looking packages from the previous mail carrier, make them a priority.
Divide Roles in Co-op
If you’re playing with friends, avoid having everyone do everything.
That usually creates confusion.
Instead, assign permanent responsibilities.
A simple setup works incredibly well:
- One player handles customer service and weighing.
- One player manages scanning and nighttime inspections.
- One player organizes warehouse shelves.
- One player prepares the boat for departures.
Once everyone knows their role, the entire warehouse starts operating like a real postal team.
Mistakes become rare, duplicate work disappears, and deliveries move much faster.
Learn the Stamp System
The stamp system looks simple, but it’s surprisingly strict.
Before adding any stamps, always weigh the package first.
The package weight determines how many stamps are required.
After that, match the correct stamp category.
For example, if the package requires blue-category postage, any blue stamp from that category will work.
The important part isn’t choosing a specific design—it’s meeting the correct category and required postage.
Once you’ve mastered the basics, you can add decorative extra stamps if you like, but always make sure the required amount comes first.
Recognize Returning Customers
After a while, you’ll notice something interesting.
Many customers return regularly.
Even better, they often ask for very similar types of packages every visit.
Some consistently request:
- Tall boxes
- Packages with red tape
- Thin parcels
- Large deliveries
Eventually, you’ll stop reading every request word-for-word.
You’ll recognize the customer, remember what they usually need, and head straight to the correct shelf.
It’s a small optimization, but it dramatically speeds up your workflow and makes serving customers much more satisfying.
One of my favorite things about Cat Mail Co. is that it never forces these strategies on you. You can absolutely play casually, toss packages wherever they fit, and still have a good time. But once you start creating your own organization system, respecting package weight, preparing deliveries in advance, and paying attention to the mysterious nighttime events, the entire game feels different.
It stops feeling like you’re simply sorting mail and starts feeling like you’re running an efficient little post office while slowly uncovering the secrets hidden behind every delivery. That’s when Cat Mail Co. really shines, and it’s what kept me coming back for “just one more shift” far longer than I expected.