Over the years my wife and I have learned a couple of things: A) We are getting older and more forgetful and B) If we make mistakes out on the water we can hurt ourselves and/or our equipment. Accordingly, quite a few years back we developed departure and arrival checklists which we have refined over the years. This has really cut down on our error rate and has made us more confident sailors/boat operators. I am curious if a lot of others do this.