Yes, I keep targets with pertinent info written on the lower left corner: date, gun, load, distance, place, etc. Looking over the targets over the years I find something very interesting and one of the reasons I keep the targets - not the original reason. Shooting at different times of the day with varying degrees of light, etc., the same firearm with the same load will impact the target at different inexplicable points. After 25 years of this I still cannot fully pin down why the same gun with the same load will impact a different point. I'm talking handguns with open sights, of course.
Big Boomer