Redeeming credit card rewards

I have a little over $100 in rewards waiting to be redeemed with my Capital One card. I have three ways to redeem the money:

1. Get a check in the mail.
2. Use the amount towards my balance (I don't carry a balance, so this option is out).
3. Buy a one of the gift cards offered.

If I get the check, clearly I can use it for anything I'd like. Chances are it would go in my savings account. Maybe put it towards my travel or emergency fund. However a $100 gift card to Panera sounds like a delicious idea right now. Perhaps I should wait until after lunch tomorrow to make this decision.