If you’ve got T-Mobile Internet for your phone like I do, you probably also have unlimited use of their hotspots. What’s your userid and password? This is something I forget every time I try to use it, so I figure if I actually write it down, I’ll remember it. Your userid is your 10-digit phone number and your password is the last 4 digits of the primary account holder’s social security number.
Now, don’t forget it again!