Walking is a good idea.
I was thinking about how to explain do the "little things" ... because the little things add up to bigger things ... and the walking idea is terrific!
Won't your kids think you are something else when you walk with them around the block three or four times a day?
I watch the Dog Whisperer, and there is a lot of what he teaches that is almost universal among animals and humans, just on different levels.
He runs into dogs from time to time, that are just frozen in the "off" position. They do all kinds of bad things to express their frustration over life and living, but things change when you can take them out for a walk.
And, some of them just have to be encouraged to take the FIRST step ...
For us humans, we get so focused on everything going on around us that is beyond our control, we get frozen, too ... It is like we are so busy looking at our feet we can't see anything going on three feet in any direction of ourselves.
Taking a walk a couple times a day (even if it is just around the block) changes our perspective, and how we look at things around us.
It also helps break us out of the rut.