I saw a neat idea that I might use to help save up for our next trip... you have to decide how much money you are aiming for in advance. Say, $1,000 for example. In the original idea they made a paper chain "worth" $1,000, with each link being worth $10 I believe. (If you don't have space or don't have kids, you could do a chart with each square being worth a certain amount, or whatever. ) Then, when the family had a choice to say, have pizza, they could either have the pizza or eat from the pantry and put the pizza money in their trip fund and tear off links on the chain worth $20. When they got to the end of the chain they would have enough money for their trip. It was a great visual reminder of what they were aiming for and helped them make choices about what they might be willing to give up to get to their vacation faster. What fun to see that chain getting shorter and shorter (or the chart filling up or whatever.) They were surprised how many times they were willing to make a sacrifice when they could see the immediate results of doing so.
I hope that made sense the way I explained it.