Neat and tidy: Install a coat hook low down on the floor in your hall and hang your trainers and shoes from it to keep life organized. Make sure to bend hooks so shoes can be knocked off with feet. won't work for boots but other options for boots.
The idea is to have the perfect measurement between the holes… so.. i’d mark a level line on the wall. then use the tape to measure the distance between the holes. .. transfer tape to wall at the line and then you’ll know right where to put the holes.