I went on medical leave, so the truck will sit for a month
Seriously. I only have a 3.5 mile commute to work, so there is not really much we could do better. I thought about riding my bike to work, but there is a 1 mile stretch that is really dangerous, so that's probably out.
One thing I do for my Disney trips is do things like MyPoints, and Memolink for gas cards. This last weekend trip to WDW I had $175 in free gas, and I used credit card points to pay the actual Disney bill.
EVERYTHING that possibly can goes on the points card (not Disney Visa, not worth it), and then we pay for Disney trips with the points.