I used to wear coke-bottle glasses I was so blind.But I had that radial keretotomy or whatever and now I have x-ray vision.All I need is a pic of the lake and I can "see" if there is fish in there.Saves a lot of walking.I use a combination of maps(topo and Delorme) and the internet and I ask everyone I meet if they are a fisherman,and if so,where they go,etc.I found a super sweet spot in wyoming by talking to a guy in Ixtapa,Mexico.Its what I do when I'm not fishing.