I've recently started logging visits to my own Waymarks (gone over to the Dark Side). However, I am only logging visits if I visit the location on a separate visit from my original visit to photograph and record the details for posting the original Waymark. In this way I have developed a whole new series of locations for me to go and visit. It's a bit like maintenance visits for caches, or to put it another way, a good excuse to go for a walk.