The shorthand format is written as squares. With the top left being the 'section', which would be either upper or lower(body), designated by 'U' or 'L'. To the right of that is the 'area'. With upper body area one there are three 'targets' : chest(1), back(2) and shoulders(3), and for each 'target' there are various exercises that are rotated through in a circular fashion.
Thus, top left : section; top right : area; bottom left : target, and bottom right : exercise. There are four areas for upper body, and three for lower.
The format of each line is : U(upper body), L(lower body), U, L, U, U, L, U, and the line repeat 'til the end of page.
The number at the bottom of page is also of use. 1 - 4, if it is even that means start with right(arm, leg, or side), then left next time.
I can fit a lot of information on a single page with this format. I use barbells, but mostly dumbbells lately, I have heavy resistance bands and various anchors in the basement, one pair I made of heavy oak boards that weights are stacked onto then bands are connected. I also reproduced the lat pulldown using eye bolts and heavy bands with cable grips secured to sturdy structural supports in the basement. There is not one single exercise that I cannot duplicate using dumbbells, barbells, bands, hand grippers, and various other apparatus I have bought, or fabricated myself.

- this is a new page that I recently started. One line through a square means one set completed, an 'X' means two.