Which gadgets do you use?

After browsing through Abhishek Krishnan's gadgets blog, I started thinking, which gadgets do I use in my life?

My primary thing is my cell phone (Motorola i880), which I use to listen to podcasts and take the occasional photo. While driving I use a small FM transmitter connected to the phone.
The other gadget in my house is my wife's Dell Axim x51v PDA, which she uses extensively as a mobile medical (she is a doctor) database (and I get to tweak it for fun).

Which gadgets do you use?