Although I messed up and deleted the original comments, I thought it was interesting that the first two were about diet. Everyone has either done that or needs to do that! I have to pass along one recommendation in a comment - that the book "The Abs Diet" by David Zinczenko was easy to follow and works.
It got good comments from people who purchased it on amazon.com, so I ordered a cheap used copy. They said you can eat most anything sensible on this diet. That's what I want to do: just eat sensibly - not starve myself.
Last night I went to NorthPark to check it out for walking if the weather is bad. I discovered that if I walk all of it, including going around the perimeter of each big store in all four corners that it takes 45 minutes. I walked at a good New York City pace and was still passed by the little old lady power mall walkers! As I do it I'm sure I'll get faster, but you gotta be able to see all the sale signs so you can go back and get bargains after you're done!
Other than that, I can go to White Rock Lake near home, or The Katy Trail a block from work all the way past downtown. http://www.dallasnews.com/sharedcontent/dws/trails/katy.html