I stuck to the low-altitude activities since I didn't have a belayer. I traversed the bottoms of some big walls, climbed around the bouldering room, and worked on navigating "the cave" (the big all-natural space in the bouldering room).
I did do some traverses with the handholds and also tackled my arch-nemesis, the "Lord of the Rings" route in the bouldering room. For some reason, I find this one incredibly difficult even though it's a beginner climb.
Since I like to climb using mostly "natural" features (ie, as few handholds as possible), I'm always grabbing cracks and small points and bumps as my holds.
My hands are just wiped out. They're dry and sore and I think I'm missing most of the first couple layers of skin on the insides of my fingers. My forearms will be aching tomorrow...