Let the hive mind of Engadget get that for you.
"As someone who doesn't reside in the USA, I was wondering what would be the best way to get internet for my computer in the US for a couple of weeks? If it were Europe I know I'd look for some prepaid data. Is there anything similar offered by American carriers? A MiFi or a data SIM that I can tether from would work, but I'm trying to maintain a tight budget. Help!"
I always feel bad about leaving my dog at home all day-only to take him for a short walk around the block at night. there are two dogs he loves to play with that we run across in the park sometimes on saturdays. depending on the cost, if it could help me coordinate when those dogs will be around during the week, I'd probably try it.