I use Remote Desktop constantly. I can't believe I went so long without using it. I set up long downloads from my g/f's or from work, and then when I get home, it's finished. Or I'll use it to check my POP3 e-mail and newsgroups without having to configure anything on another PC. Or do my programming assignments without having to install anything on another PC and transport files back and forth.
The only problem I have is rebooting my PC remotely. It never seems to work. I can never reconnect after doing so. Never figured out why because my PC reboots fine when I'm sitting there. It's not a IP problem, because I have a static IP. Something goes wrong with the reboot. I'll come home and turn on my monitor and move my mouse and the screen is just black.