I've managed to put off workouts for a few weeks - no time, too tired... you know the drill. Tonight, I started in with "I'm so tired I won't be able to do it right, better to be fresh tomorrow." But managed to push myself to do it anyway, by having low expectations (just do it, however badly). It wasn't pretty - form was sloppy, stopped before time was up, skipped reps, etc. BUT - I actually did it. And by the end, was pushing myself to do the harder versions and try to keep up with K&D. So now I will try to expect less, and hopefully do more, however imperfectly.