What I would use it for is to log in to my my school's wireless network. Not the actual network itself, which is open, but the gateway afterwards that requires you to enter your student email address and password. It's quite long and I usually end up turning wifi off when I'm on campus so I can still get emails. If I could save even just the email address in a note I could copy-paste it and save at least 30 seconds of time (which is surprisingly long when you need to want to catch something before the professor enters and starts lecturing).