(OBWW) Boy, did you ever hit the nail on the head! How did such a young puppy like you learn "the trick"? :)
At 60, if I don't walk everyday, I feel 85 ... and 60 is plenty bad enough by itself. It somehow seems the more active you were when younger, the worse it is.
Instead of driving, I walk to the Post Office, 3 mile round trip; the grocery store for small items, 1 mile round trip, and so on ... I have measured 1, 2, and 3 mile routes marked out, depending upon my time and inclination, but never less than a mile, even in bad weather. Besides, if you walk 20 minutes in one direction, you have to walk 20 minutes to get back
Not only does walking cost nothing but shoe leather, the savings in monthly cholesterol and blood pressure medicine can be enormous at the rip-off prices, and leave more for the tool/wood budget.
Just like smoking, you can make it a habit. Do that by forcing yourself to walk everyday for one month, no matter what ... after that it will be harder to break the habit than it is to go ahead and walk.