If I load it w/ my address book & take it w/ me, inevitably the batteries go dead. I usually just throw a small spiral notebook in my purse for notes, & I love the Go Mom organizer, available for $6 at Target, tho my anal self uses a pencil to keep it neat.
I must get a Hipster, I'll have such fun shopping for it cause I'm not sure what a binder clip is (requiring research) & it's affordable (so I won't feel guilty if I don't use it).