Something that helped my workouts more than 10 years ago

Most people who work out keep a training log of some sort. Recording exercises, sets, reps, etc.
eg. Squats, 135x10; 225x5; 315x4; 405x8; 315x18
or something along those lines.

While I was in college, I started writing things down differently. Instead of adding up the weight on the bar, I would just count the plates instead. So something like 405 would have been written as 4P. Something like 275 would have been written as 2P,25. Something like 530 would have been written as 5P,10,5,2½.
So the same squat workout as above would have been written as:
Squats, Px10; 2Px5; 3Px4; 4Px8; 3Px18

It may seem unnecessarlily complicated but what this allowed me to do was ignore the actual poundage and not get caught up in the "numbers." I just concentrated on adding more and more plates to every lift. It also eliminated having to do any math when all I wanted to think about was lifting. Maybe this won't help anyone else but it helped me get into a mindset of constantly getting stronger.

Use it or don't use it. Makes no difference to me.