we do the 52 week money challenge--I always put in extra every week...we currently have $1950+ change for our trip to maui next January.
we also use rewards credit cards for our daily expenses--we put groceries, gas, our cable/cellphone and even our insurance payments on the cards. I put whatever I can on our AA citicard--in the past 5 years we've gone to London, Italy, Hawaii and we have enough miles now to go to Maui AND Europe again. We pay the cards each month.
we use Mypoints to buy whatever we can...we especially LOVE buying gift cards for places we shop anyway-CVS, Staples, etc--getting big points for them and then using them to get FREE gift cards for places like Steak & Shake, T-Rex, Rainforest, Cracker Barrel...even Safeway which we use on Maui to help with the exorbitant cost of groceries in Hawaii.