And I'm gonna check my streetpass way more often, just so I can get the maximum amount of passes I possibly can.
Oh man, I hear you on this! Keep your charger handy if you're going to be checking more often too- my 3DS ran out of juice halfway through Friday because I was checking mine so often; but the rest of the days it held out just because I brought my charger and I made sure my down time for lunch and stuff was near a power outlet so I could plug in.
As for my plans for next year...
-Probably going to get back into cosplaying again finally! (Last time I made a new costume was my Ember Mclain for AX2006

)
-Still not going to stay on site. The hotel my group was at cost us about $68 a night, had a fridge and microwave, was situated near markets, restaurants, and a crafts store, and was maybe a 10-20 minute drive from the convention center. We might be looking at the Extended Stay near there for 2013.
-Probably will stay an extra day or two after the convention. In 2011 and 2012 we had a panel late at night Sunday night/Monday morning, meaning it was almost 3am by the time we got back to the hotel and closer to 4am by the time we got to sleep. Does not mesh well with morning hotel check-out time or the 7 hour drive home on Monday.