If I Could Change One Thing ...

If you could easily change one writing habit, what would it be? Starting earlier (or later) in the day? Become a plotter or pantser? Rush through a first draft or edit as you go? 
Brenda kicking off the week.
I'm kind of envious of writers who get up early in the morning - say 6 a.m. -  and write for five or six straight hours, have lunch, work out, then settle in for a few hours of editing and publicity work. Some say they can maintain this schedule seven days a week. 
So, I guess if I could chang...