I just started - but the first two caches I found (which were quite active according to the logs) were dirty and wet and had little of interest in them -especially for kids, who I expect are a big part of the hobby. So I took them home, cleaned them, dried the logs and laminated them (and added new ones), bagged everything that needed protection - and added a couple of small bags with items that kids could take as one. Now they look the way they should.
I think one of the best ways to encourage this is to start taking pictures of pristine caches - to help set the standard in people's eyes.
