sounds like you don't have a plan.
oh.. i do have a plan in my head. I have over the years kept written records but what i mean is i do sometimes more than other times or i will change things around depending how i feel, the order of exercises for example. I go really by my instinct. This is my way i suppose, some people stick to a given routine for months or even years if results are evident. I do not think a training log is carved in stone. Maybe for a pro yes it is a useful aid because small details are important. I can remember from week to week what weight i did and sets but true...what did i do 6 months ago??