Whatever it is he HAS to do...but HATES doing...take that money and hire someone to do it for him, for a while. Say, Honey, I got so and so to take care of yadda yadda, for the next two months. Thanks for doing it all the time, but we thought you needed a break.
He uses power tools daily for his job so that's out. Hiring someone to do the things he has to do but hates to do is a good idea! I think he would enjoy a GPS, too.