Additional items:

*check the dinghy - engine up and not full of water (especially if it rained)
*pull up swim ladder
*re-secure any safety lines that were opened the previous day at anchor - I always double check this one myself even if I assigned to someone else
*remove items hanging on safety lines
*trash and ice - really anytime someone is going to shore and depends upon location/options
*stock cockpit cooler - not just for beverages when anchored later in the day. A cold water in the mid-day heat is much better than a warm water pulled out of wherever they were stowed at the beginning of the trip.
*Sunblock
*Secure personal electronics. I always ask if everything is secure and follow that up with where is your computer, phone and camera. Towels on the salon bench are probably okay, kids ipad they put down and forgot about earlier when they rushed out to sea turtles swimming near the boat, maybe not.