In the past I’ve used this A5 size for budgeting. This one is my new exercise log. I list my exercises down one side of page then list the days of week across top and check off the exercises I do on whatever day. Lower body work on the left page, upper body on the right page. Before I just scrawled whatever I did in a standard lined notebook, sort of like a diary. Now I can get a good snapshot of everything I’ve done in the course of a week and see where I need to place more or less emphasis the following week. You get to a certain age, if you don’t use it, you lose it!