I use a regular ol' adult toothbrush for those hard-to-read seams.

Rechargeable batteries save TONS of money on battery-powered vibes--but not every toy runs well rechargeables, so it's worth trying both disposable and rechargeable.

For toys that I don't like on the first try, I make myself use them at least four times before I give up. Not sure if that's good advice or if it's just stubborn, though. Hah.