I signed up with my email address for some of those group-buying coupon places that send you a deal a day (50% to 80% off local restaurants, spas, all kinds of stuff!), and I've made some awesome purchases for rewards and gift-giving! 99 bucks for 6 sessions of laser hair removal, for example! :)
The trick is to only buy the REALLY good deals where it's something you were budgeting for anyway, otherwise the coupons can really lure you in. Try GROUPON, LIVINGSOCIAL, etc.
It's usually one deal per day, and you can only buy a limited number of vouchers. I've even got myself some personal training sessions for CHEAP! And a ten dollar spa day is SUCH a fabulous reward that doesn't cost too much ... :)
Just google "Daily Deals + your city" for deals near you!