As you may or amy not know, I have PenPals from all over the world, so I’m forever buying stationary! I’m forever buying packets of envelopes and paper, so soemone very kindly brough Paperstone to my attention. They do fantastic office supplies in bulk, what I had been paying for a few Envelopes I could get hundreds, even thousands, for on Paperstone!
They have a huge selection of different sized envelopes, these ones below are great from just sending a short letter.
Or I use the Jiffy style ones if they are going slightly further afield to ensure they arrive safely. Sometimes I even send little gifts so these are the perfect option!