Yep, I remember Arnold and mini-me.
So is your left side catching up since you posted that?
A gallon of milk is 8 pounds, so yeah, try using the left for a while - it's like an 8 pound kettlebell.
I didn't realize that I use my right side for
everything until I had my shoulder surgery and had to use Lefty instead. I mean, holding the hairdryer, brushing my teeth, getting dressed, putting away clean dishes ... everything was right-handed.
No wonder I used to be able to curl 5 pounds more with my right than my left (back in the pre-surgery days)!
But that's one of the awesome things about DBs - they force each side to work independently. Whether you realize it or not, your dominant side is doing the majority of the work on a machine, unless it has independent handles. When you use DBs, you're forcing the weaker side to step up and carry it's own weight, so to speak.