Window Envelopes and Double Window Envelopes – Checkomatic Blog

May 9, 2018

May your mailings be safe and sound this May

Aren’t you excited for summer? The start of May marks the end of hibernation and the start of the best season for business and pleasure. As you escape the confines of home,come out of office hiding and rejoin the social scene, breathe much-needed life into your correspondence with a fresh stock of your favorite Check O Matic paper supplies.
Finding fresh value
When you buy envelopes in bulk, the most economical choice tends to make your mailings the most vulnerable. If you’re looking for the perfect marriage of competitive cost and enduring construction, our heavy duty #9 and #10 envelopes make an ideal choice. From security tint to business reply, pre-printed with windows to easy flip-and stick,you can satisfy all your office and personal needs over in our easy online shop.
Answer this. Regarding greetings, invoices, checks or statements, what’s most important to you? Is it confidentiality? Ease of closure? An eye-catching logo? Our customizable designs check all your diverse boxes while saving you time and money in the process.
Fill out the form, put down the pen
When ordering our custom printed envelopes, you only pay for what you get. Suit your budget by choosing blank, 1-color or full color, and enter all the information you wish to include—company artwork, return address, imprint color and beyond. When it’s time to mail your materials, our pre-printed envelopes make sending as simple as stuff and go.
a-MAY-zing savings
your purchase of
1000 + #9 or #10 envelopes

Head over to and be sure to mention May2018 at checkout to make your bonus bloom!
October 19, 2017

with paper designed for a trickier postal journey

As the crisp, cool air begins to creep across America, we can’t help but think about all the inclement weather to come. With threats of wind, rain, hurricane and even snow on the horizon, it’s smart to equip your office with the sturdiest seasonal supplies.

Whether you’re mailing company memos, employee paychecks, client invoices or fall marketing mailers, it’s important to consider the weight and thickness of your chosen envelopes. Postal workers can attest to the unpredictable conditions your papers are up against throughout the months of September, October, November and beyond.

Knowing these seasonal postal challenges, Check O Matic keeps product quality and durability our top priority. The majority of our most popular envelopes are crafted of resilient 24lb stock paper and feature super sticky gummed and self-seal closures. These not only prevent rips and tears, but also protect your materials against light water damage and the rough-and-tumble ride from sorting room to truck to mailbox.

So go ahead and get excited about chunky sweaters, apple picking, pretty bonfires and all things pumpkin spice. With us, your mailing is safe, secure and ready for fall.

October / November Special


your purchase of

500 or more

24lb Booklet Envelopes


24lb Double Window Check Envelopes

Head over to and be sure to mention FALL2017 at checkout to retrieve your autumn savings

July 18, 2013

Window Envelopes for Business Checks

Double Window Envelopes for Checks

Self Seal Window Envelopes for Checks
Double Window Envelopes
Self Seal Double Window Envelopes

If you own or help manage a business you have had to deal with envelopes. When deciding what type of envelopes suits your company the best, (More…)

November 23, 2011

Window Envelope – The Perfect Business Solution

Developed in Chicago, Illinois in 1902, it didn’t take very long at all for business owners to see the value of window envelopes, (More…)

November 7, 2011

Benefits Of Using Double Window Envelopes

Many small businesses are looking for ways to cut costs and be more efficient in every way possible. (More…)

October 28, 2011

Double Window Envelopes Improve Efficiency And Increase Profitability

There are lots of ways to make a business more profitable. Sometimes they’re just little things that people don’t think of. Double window envelopes are one of those (More…)

October 5, 2011

Window Envelopes Cut Costs And Save Headaches

Sometimes the best “new” thing isn’t new at all. It’s something that we ignore, until suddenly the light bulb comes on. (More…)

September 27, 2011

Save Time With Window And Double Window Envelopes

When it comes to business dealings and private associations through the ‘snail mail’, the concept of the single window and double window envelopes have become quite popular. (More…)

September 19, 2011

Window And Double Window Envelopes

The convenience of window and double window envelopes ultimately saves time for a more effective use of resources. (More…)