Here are some things I've been finding valuable as of late:
The $10 bill. Everyone else usually has 20s. Be the champ and keep 10s in your pocket.
(Mac OS X) is a really useful little tool that lets you quicky annotate
screenshots with boxes, highlighter, text, etc, and then shoot that
shot directly to an email.
Christopher Alexander's books and ideas.
Vyper laptop sleeve by Booq.
Clean, simple, protective, thin laptop sleeve with minimalist style.
Keeps my Powerbook snug and safe and takes up barely any additional
space. Really highly recommended.
The Fisher Space Pen
is small, compact, solid, metal, comfortable, and the ink is fed by gas
pressure permitting the pen to write in any position. With a shelf life
of 100 years, the onus is on you not to lose it.
Shure E3c headphones. Amazing, small, lightweight.
Tea Timer (Mac OS X) is a quick little dock-based countdown timer that slaps you with the chimes of Big Ben when the time is up.
Roland V-Drums let me bang away without the neighbors getting pissed.
Blood oranges make the sweetest juice.
SurveyMonkey makes it fast and easy to set up online surveys. Really nice and simple web-app.