This deal may be worth snagging tomorrow: Living Social and McDonald's will team up for a daily deal on 12/1. Tomorrow, Living Social members can snag a voucher booklet costing $13 that includes individual free vouchers for five Big Mac sandwiches and five large fries. The press release states that they will be redeemable at participating restaurants nationwide and will come via snail mail.
This could be a great deal if you're a fast food fanatic. They also suggest that the vouchers can be individually gifted or put in as a stocking stuffer.