Mail

Know Your Envelopes: Part 2

In the first half of our Know Your Envelopes series last month, you learned about different window types and the materials used to make them. This time, let’s talk about seals (no, not the cute ones…

Mail

Know Your Envelopes: Part 1

Although you get them in the mail every day and you’ve probably sealed a fair share of them yourself, chances are you haven’t given much thought to envelopes. A good envelope, however, can make or…