If it's important do it everyday.
As we're bombarded daily with new ads for pills, diets and ab-doers, we have to protect our wallets and our time.
There are “bus bench” workouts and “park bench” workouts. A bus bench and a park bench look exactly the same, but your expectations sitting in them are radically different.
Most champions are built by punch the clock workouts rather than extraordinary efforts.
The best tonic for soreness is to do the movement that got you sore in the first place.
If something is important, do it every day; if it's not important, don't do it at all.