Weider PowerSwitch adjustable dumbbells. I love these because they don't take up as much space as 4 separate sets of dumbbells. Each of these can adjust from 2.5(just the bar) to 12.5lbs. I'd actually like to get the ones adjust from 5(just the bar)-25 lbs each at some point, but for the most part, this lower weight set works okay for me for now.
Ampiphod Hydroform lite. Holds 12 oz and seems to fit my hand perfectly. When I get to the point that I feel I need to carry more than 12oz, I switch to a belt. But I honestly much prefer carrying the handheld. Maybe I should try carrying one with larger capacity for those longer runs instead. Oh, and they make this one with a plain black pocket too, but I think the blue print is more fun. :-)
Strawberry-Lemonade flavored Nuun. It happens to be my favorite flavor of Nuun and it supports a good cause. 50 cents goes to Komen foundation for each tube of the pink lemonade flavor that Nuun sells.
What about you? What are a few of your not-so-obvious favorite things?