With so many things to spend the time in retirement, how do you keep from getting over-extended? The fence next to my hot-tub has seven combinations of one inch and six inch plywood boards. It makes a really nice design for a fence, but an even better design to help focus your mind and planning. As I sit in the toasty water thinking about what I'm going to do each day, I assign the work to one of the seven large boards. I don't try more than seven things each day, though I have to admit that some of the tasks get pretty complex.