Relax Your Grip
A lot of the everyday things we do involve gripping with our hands.
This, combined with haste, the busy pace of life and simply being unaware of ourselves, usually results in massive over-contraction through the flexor muscles of the hands and arms.
I teach people to use their muscles in a balanced way for everything - the big tasks and the small. But it takes time to re-educate the neuro-muscular system, so I always like to give tips for the short-term.
Top tip: if you remember to relax your grip a bit, chances are your extensors will take more of the load; these are supported by the strong muscles of your back, which in turn, are supported by your legs.
If you remember to breathe too those chores might be a lot easier :)