It is not an easy thing to balance, because I am looking for a step up intensity with my workout, but I do not want to do things over the top so that I end up getting injured. I was looking at the best p90 workout review sites and it seemed like a lot of those types of things were a bit too extreme for me. The problem goes this way. I have a limited amount of time in which I am going to be able to work out during the day.I usually try to do it early in the morning or late at night. It really depends on what my schedule is like. A lot of the time I can not really stick to the regime like you need to do it. If you want to have a good work out you have to do it on a schedule and you have to maintain that schedule. It does not good to just work out once or twice per week.
Ideally you would work out different parts of the body on different time frames. For instance you could do your lower body on alternate days and your upper body on the opposite days. Then you let the body recover on the in between days. It is necessary to have a recovery phase in all of these things, so you have to think about a logical schedule. You need to think about how intense you can work out and still have energy for the rest of your day. Obviously if I am doing this in the morning I have to give myself some breathing space before I go in to my job. If I do it at night then there is not going to be any issue with being too tired.