we all have done it..over the years I have developed a launch routine...first of all I want no help or talking or distraction of any kind..i,and I alone will, prepare the boat for launch...I store the drain plug the same place I store the tie down straps..when the straps go to storage the plug comes out..i also have a spare plug laying in the battery compartment...then when I am ready to launch I take 30 seconds or so and look at the rig and mentally go over everything..i do not launch with anyone in the boat or holding a bow line...especially the wife holding the line on a slick landing..i have known too many people slipping and falling on a slick part of the landing...I tie the bow line about half way back on the trailer..back in and stop kinda abruptly and the boat slides off...the go forward a bit until you can get to where it is tied without getting feet wet..i learned this trick from watching commercial fishermen who fish alone...
there is another routine I go through when the boat is hooked up at home and getting ready for the road...
there is another routine for a good fishing partner that don't take care of his rig...just tell him that you will never get in his boat again and tell him why...