You guys need to learn to turn that around. Exhibit A - Put on sunscreen. I bet if you used half (or more) of a bottle, applying liberally in places one normally wouldn't, she won't tell you again, heck, she may do it for you.
I am old enough to be WAYYYYYY past any stupid skinny jeans, however, she bought me some to wear to some "event". I put them bad boys on, turnt them into some Ed Grimley nut huggers, I got to wear my nice broke in Wranglers and boots instead.
Some things I don't mind, but when I feel it's gone a bit too far, I turn it around a little. Nit picking typically stops for a while.