I still use the number system, but I take a screenshot with every mark. This allows me to see what I actually marked, rather then naming it stump #45. I make a file for each lake I fish, that way when I'm going to fish Lake XYZ, I'm going to know which waypoints I want to hit. Depending on time of year, I may only look at waypoints deeper than 10', other's I may only look shallower than 8'.