>>551511Try and research any building you can before going into it. Make sure there aren't any owners that prosecute regularly, or any eyes that might be watching.
Might even find some tips if it's a popular location you find. I always like to drive around the industrial parts of town, in alleys and shit.
Getting on rooftops in downtown is pretty cool. Check out bridges, and go under them, and shit. Be nice to the homeless, and maybe even come back to their pad with a 6 pack sometime if you get bored.
I smoked some blunts with hobo's before.