Adding friends in mousetopia is easy, in the main Lounge, just click on a username and then click Add Friend.
I feel like this is kind of a dumb question but....why do people check in online 10 days prior to arriving. if it wasn't for this great site, i wouldn't even of known you can do it! we will be arriving we late at nite, possiblely early morning. Is there a benefit to doing this??? We leave in 11 days! Yay!!!