I found a thread about Geocaching on the Community Board. I mentioned it to dh and dd and they want to give it a try. It sounds like so much fun, and if you have access to a gps it seems like the biggest expense is gas. Depending on where you do your hunts, that could be nominal. I'm still learning about it though so Google it or search the DIS.
An hour? I've only gone to a casino once, I was at the mercy of the party I was with (evening entertainment during a work trip.) I fed $20 into a machine and 3 minutes later turned around and said, "Well, that's my $20, I'm done." I was stuck for hours watching the guy who drove us fork thousands into machines.I've made $20 last an hour or so in the casino a couple of times. I only go once, maybe twice a year, and only take in $20, but it's totally a blast for me to pull the arms on the slot machines (not push the buttons, that's too quick and takes away from the anticipation).