As far as i know the dominant side of the brain as far as co-ordination goes should have nothing to do with strength. in fact logically you could say its expected that the non-dominant side might be stronger. For example if you're right handed and carrying something heavy into your crib you're naturally likely to hold the heavy load in the non-dominant hand so you can get your keys out of your pocket with the dominant hand. I know i do.
Thekettle - Last name kettle by any chance? Just interested as mine is.
I'm sequentially challenged when it comes to the door keys/baggage scenario, it ends with a reachy cross-torso pocket move at the front door, shortly before dropping said luggage. Any ideas welcome