Me too insom! I picture you writing out the url of the Hubski link on the back of each envelope of stickers and can only conclude that you are very thoughtful. Sort of like sending your professor an attachment titled "LastnameFirstnameClass" instead of "Paper".
Lol, I actually do that will all my files. I don't have papers anymore but I have invoices and SOWs and more and they all include my full name and date. I just realized I am that thoughtful, although it's mostly due to me being incredibly annoyed when I get another invoice.pdf and it lives in my downloads folder and then I have to open it later to figure out where it came from. I enjoy making the envelopes, and seeing the poor post office workers face when she sees them. They're usually all different colors (lil sent me a pack of awesome pens that I always use) and have silly drawings and writings. I decided to tone it down a bit this time because the post office worker told me they might get returned last time. Some did end up getting returned but I still think it was due to them being over 1oz, not the amazing drawings and messages. :P