Spend it on smart resources or tools that will save you money. Hmmm... that sounds like a bike that you can use for errands around town to conserve gas money or to exercise outside instead of in a gym with a costly membership.
Use it to improve yourself. Did you know a bicycle ride at a moderate 10 mph pace for an hour burns 400 calories? Or that regular cyclists are 50% less likely to experience depression?
Go green on products that pay for themselves in the long run. You know that bike that saves on gas usage and car maintenance? A 4-mile ride on it also keeps about 15 pounds of pollutants out of the air.