Love the envelope and the fact that you can deal them easy.. I do mailings once every 2 to 3 months and use around 2 boxes and my kids love to help me and they are easy to seal and kids love it and it's fun...
I have to bill 350+ clients quarterly and these envelopes are a godsend! I used to have to either use a sponge or lick envelopes to get them sealed...now it saves time and a mess! An added bonus is that they have the security lining.
I like these particular envelopes because I do not have to lick the envelopes. They also slide nicely through my Canon printer when I print the addressed on them which I also purchased from Staples a few years ago and is still working very very nicely as when originally purchased. The adhesive holds the flap down nicely; I have never had a problem with them holding together no matter how thick the contents. They also give a nice professionally appearance when I mailed them out for various applications.
I usually try to save money for our church. However on a laser printer using regular glued envelopes the heat seals them. I can make them work by sitting here and running my fingers under the flap before it sets up. Most of the time this frays the flap. I pay much more for the easy close envelopes but it saves a lot of time to not have to make sure they don't seal. Sometimes you just gotta splurge.
I have used the #10 envelopes to do some bulk mailing and apparently the post office does not recommend them as the weight can be slightly different for each envelope. Believe me those scales they use can detect a feather. Personally I really don't care but they do. (I will continue to buy these in the 500 count boxes for our office-especially the easy close which save a lot of time andwho wants to lick that gummy stuff?!) Curious as to if these envelopes are made out of recycled papers?