It is 78F in my apartment right now with the air conditioner running.

Wow, man, nice comprehensive comment. > Replace your light bulbs with LEDs to reduce heat generated from incandescent bulbs. I was going to start doing this when I realized the LED bulbs I was going to use to replace my existing CFL bulbs actually require a few more watts. I assume higher wattage means more heat, so I just held off on that. The color temperature and lumen rating aren't equivalent and I'm happy with what I've got. My wife was able to get some free kit with a bunch of bulbs in it, so it's not like I ordered them--maybe I could do slightly better if I got direct equivalents. > Install blackout curtains to reflect heat during the day. I've got these in the living room where my AC is. They only seem to help a little, mostly they trap that warm air between the curtain and the window. I guess that *sort of* helps. > Check all exterior doors/windows for leakage. You want to seal in as much cool air as possible. That's going to be an issue, I've certainly tried to in the past. I end up only succeeding at making the door harder to close. This door has a past--apparently a previous tenant had a drug deal go south and this door got kicked in. The landlord basically glued it back together. > Pick up the clutter. This is definitely a big issue, I've noticed before that it helps. I'll have to get on my wife and daughter to help me accomplish that goal. > Position a box fan in an open window, facing out. The fan will pull hot air out of the room and transfer it outside. Hm, I should try that and see if it actually helps in the bedroom, the furthest spot from the AC unit.