We tried the 50/50 thing. I'd do the dishes one day and he'd say he'd do the dishes the next time. Only when next time came, he said "later." Later became a week later. By the time he got to the dishes, they were nearly touching the ceiling all the while my fingers where twitching to see such a disaster. I do the dishes now.
When it came to driving, we decided to make that fair too. I'd drive to and he'd drive back. That lasted until I broke the door handle on the passenger's side, forcing passengers to either roll down the window and reach for the outside handle or wait until the driver kindly opens the door. Now guess who doesn't get asked to drive anymore! I can't complain. I never did like driving and it does feel nice to have someone open the door for me, even if it is for reasons other than pure chivalry.
We'll be married a year next month and while all is well (our love for each other has only grown), I have to say, vive la difference.