In reality, I believe a tree swing has been a gleam in my wife's eye since we first saw the huge maple in tree in the backyard of our current house...a maple tree that was a buying point for my wife, a little bit of New England in Eastern Washington.
The wife was excited for a tree swing. The kids were excited for a tree swing. The only one not overly excited by a tree swing was the one who had to mount it...me. Alas, today I finally ran out of excuses for not installing the swing.
Looks like it should get the job done. Both girls, AND my wife were satisfied with the finished product. I have to tell you though, having never done anything like this before, and I was quite surprised by what quality rope costs. The rope cost almost as much as the swing seat, but I didn't want to cheap out on it just to have to re-rig it next year. As long as I check the knots periodically, and test it with my weight, it should last until the kids grow tired of it.
As for a Dad's reward:
What a wonderful world we live in that you can get good beers in cans.