Another one that I've spotted is that pilots look too close to the aircraft.
Many students say "there's nothing to navigate by" when they cannot see any big, unmistakable, features directly below them - but don't bother with the funny shaped lake a few miles away.
Look all round the aircraft - and all the way to the horizon - when trying to find features.
Granted, this is usually easier here in Florida than it is in some parts of the world - as we often see for 50 miles or more - and the coastlines are closer than they are in the UK ('cause Florida is narrower) - but the system works.
K