I think it's probably best to work out in the morning to get it out of the way. My ultimate top tip is to drag yourself, even if you have to roll yourself out of your bed and in to a sit-up - it's really not that bad once you start.
“I have often thought of it as one of the most barbarous customs in the world, considering us as a civilized and a Christian country, that we deny the advantages of learning to women.”