I have the ability to log into my home system from work. With a full working gui. It's like sitting at my desk at home, although a little slower for the screen to redraw sometimes. It makes remote testing great. You can learn how to do it here, if you have the right software.
Today is the first time I tried it since I got AT&T hooked up. It wasn't working. Turns out I had to change an ip address. I looked at it, like 30 times and just scanned over it like it wasn't there.
It works now. I feel a little silly about missing something so simple. Oh well.