So here's another idea: keep your shovelglove routine as is and invest in a chin up bar. Don't make any rules about when and how many chinups you should do. Just install the chinup bar in a prominent location that you pass multiple times a day. My guess is that merely seeing it often will inspire you to use it plenty -- that certainly seems to be what's happening with me since I installed mine on Tuesday. Unfortunately my daughters constantly want to dangle from it as well... (even my 15 month old!) which can get tedious (and scary), though I guess it might be a good thing for them long term (and it's less tedious and scary than using my four year old to do "butter churns" and "hoist the sack/child").
![Smile :-)](./images/smilies/icon_smile.gif)
Chin ups and pull ups are the perfect "opportunistic exercise" to supplement your regular shovelglove routine, because they're so intense that in SECONDS most people can work to exhaustion and yet they're (relatively) safe. They add plenty without risking your established habit. They're also, apparently, very effective exercise for developing real world strength.
Here's the bar I bought:
http://www.amazon.com/exec/obidos/ASIN/ ... aysyste-20
The installation was pretty straight forward. It goes just three inches under the top of the door so there's plenty of clearance to walk underneath, and it's aesthetically inoffensive enough that my wife tolerates its presence even in a very prominent place.
Reinhard