I've yet to receive my bike, but I have a $50 gift card for Ebay. I'd love some input on a simple and cheap accessory for the bike. $50 doesn't buy much, but I wouldn't mind tossing a couple extra dollars on top of the gift card to get something useful. So, what would you buy, or have bought for around $50? Bonus brownie points to whoever recommends multiple useful items that total $50! Let me know!