Anyone here will tell you; I'm OCD. All my firewood is cut @ 16" consistently, unless someone else cut it, in which case I cut it down to 16". That all contributes to more uniform rows.
Likewise, when snow blowing paths through deep snow, I stretch a rope from point A to point B, to ensure straight paths, and therefor the shortest distances.
You believe all that?
How OCD are you? Do you fix rolls of TP that were put on the wrong way?