This thing took a week to plan, but I really needed to try something new. It's good to change up the routine often, but I like to plan mine out well in advance so I run them for quite a while. Lots of variation, and I play with different set and reps depending if I do a heavy or lighter weight that week. It also forces me to research new movements and different ways to do an exercise. I did a quad/chest day this morning and I'm in tough shape!