> But all kinds of exercise bore me to tears and there's always something more interesting for me to be doing.

Oh so this.

I try to do activeish things: walk places, stand up desk, water/snow ski, walks with wife to catch up on the day.

But I just have no staying power when it comes to repetitive motion to build up a sweat. I’ve tried swimming (I love to swim), treadmill/elliptical (I like to walk!), spinning (because I like to ride a bike), but it just does not last. I always grow to resent the time lost to doing other things, even if the “other things” are lazy pursuits.