Laptop and the Internet - I don't think I can live without it, lol.
iPod - Tim, I have to agree with you on this one!! One of mankind's greatest inventions.
Birkenstocks - They last long!! Reliable. Lol.
My Sony Ericsson mobile phone - It's been thrown at the wall/floor lots of times, but it's still working good as ever (but with scratches, of course ;] )

It's all I can think of as of now. (that I have)

<font color="purple">Clandestine</font>