A friend mentioned Puppy Linux to me awhile back, and I finally got around to trying it. VERY impressive. It's a live CD, so you can boot it right into the RAM without installing it. This is handy if you have a company laptop, for example, and the office has you locked out of the network card. You can load the Puppy up and get right online from those cheap hotel rooms. 😉
Some of the nice features:
- Small size
- Runs fast. Just takes seconds to get a graphical up.
- Easy to use.
- You can remove the boot CD once it's up. Then you can stick a music CD in the drive for comfort.
- You can save installed software and configurations back to the CD or flash drive if you want.
- Hardware detection is superb.
- It's fun, pretty too!
It amazes me all the wonderful and fun things people have done with this operating system.
Here's a screenshot of it running on our laptop that we can now call the "lapdog":
Fuenteovejuna did it 
What's this? I never thought of bringing a live CD in to try out on the work computers! Bwaaahahaha! They thought they could keep us out. Puppy Linux? I'm gonna check it out as soon as I get home.