My exercises from the physical therapists at a physical rehabilitation hospital are all located in two places. The original copies of the well-illustrated, step-by-step instructions (one sheet per exercise for some, a few per page for others) is in a file folder tucked away.
The second copy is the one I use. And I recommend other people consider creating a book like this when they want easy access to fresh ideas, too!
I put the sheets in heavy-duty sheet protectors in a looseleaf binder.
They're organized by type and ability.
There are dividers that separate them, too.
I must do certain stretches and exercises every day. They are my 'routine'.
The routine can be done in 15 minutes in briefest form, but should take 20-30 minutes.
The other exercises build upon these basics.
So every day even though I know my exercises and routine, I look at the book, do the routine...and then decide what to add to it if I want to go a bit further that day.
Having my own exercise book reminds me of the correct form, the way I can expand upon what is done to do more difficult things. You see, the book doesn't just contain what I CAN do. It also is a lifetime program, with exercises I may never be able to do...but CAN aspire to try to do! Over the years I've managed to add to the list of things I can do...and it feels good to know I've turned those pages in that book!
You can find instructions for exercises in different places, print them out, create a book similar to mine. About.com is a good resource. SP has a page where you can check off printable routines and print them, too: www.sparkpeople.com/reso
This is one of those things you can do in simple form... or can have fun creating artistic pages. (I have a checklist that I used to use daily! It was in almost graph format, so I could at a glance know what I'd done each day of a full week at a glance. That checklist of the exercises was kept in a 'pocket' dividider in the front of the book. Helped me develop what is now my daily habit/routine.