First of all, I think it's important to always think of yourself as your own most important client. As a trainer or becoming one, you are most likely well past being a new or intermediate exerciser. In this regard, you have obviously been into exercise and fitness much longer and more seriously than the people who will pay you to train them.
All of that being said, what will be a good training protocol for your clients may be inadequate for you.
My own training program is less of a routine than an approach. I workout six and sometimes seven days a week. I split the workouts in various ways, but typically a split program as follows:
Rather that periodizing, I prefer randomizing my workouts. I think about each workout while I'm warming up, and what I want to do that day. In this regard, I decide whether to repeat the same program I've been recently using, or use some variations, such as inclines instead of flat-bench (presses, flys, curls, etc.), or dumbbells instead of a barbell for the same recent exercises, or cable the machine instead of dumbbells. I even do a body-weight-only program, with lots of push-up sets using different hand-positions, and pull-ups, chins, etc. from time to time. I like working at high intensity levels, but with constant variations. It works for me.
I also do lots of stretching, both before (less) and after (lots).
That's exactly what I do, too, Barry, although I'm experimenting the next few weeks with a total body workout at least 3 days a week. I always use a split routine for myself, and although I've got nice results, my arms are no where near where I want them to be. So I'm going to try working the total body 3 days instead of using a split routine. I found the total body this morning was much more strenuous than split routine and left me feeling better.