When I was in high school and not allowed to have a cell phone, I had to use email via Gmail in my PSP's web browser in order to message people. I relied on these addresses so heavily and many people gave me weird looks for "oh btw, I need to know which carrier you have so I can get the right email address"
When I was in high school and not rich enough to have a cell phone, I had to wait until midnight for my BBS to dial the upstream FidoNet host and exchange messages.
