SS Rocky II is launched

[Tin-Can]

That's exactly what I did - except that with Larry there, I didn't walk it over to the dock. Dumb mistake, even for a rookie.

I just bought boots so I don't have to worry about getting my shoes wet, too.

  Like Curt said, an extra 100 ft of rope is a good thing. My opinion: you can never have too much rope on a boat. 

  Since I launch my boat about 90% of the time by myself, I leave the bow ring connected to the crank, I get all the other pre launch prep done, back the trailer down just til I see the stern float.  Pre-set my 4 wheel drive in 4 wheel high so I don't slip and slide pulling back up the ramp. Set my brakes, vehicle in park, shut off engine. Get out along the running board on the drivers side, walk back to the truck bed, climb into the bed, with tailgate down I can step off the tail gate onto the trailer , climb over the bow onto the deck.  Power up my sonar, make sure motor is down far enough in water, but up off the bottom enough to not smack the prop when put in gear. At that point I can visually confirm my plug is in . Get the motor started and idling smooth, then walk back up to the bow and unhook the bow crank. 
From there I can back off the trailer and get to the dock to tie up. Go back and park rig while motor is idling and warming up.  
Never have to get more than the bottom of my shoes wet. 

Don't know if you thought of it, but you want to be sure your trailer electrical plug is disconnected before you put the trailer in the water.
Hot bulbs, and electricity at the bulb sockets when they hit the water can do unkind things to your electrical system. 
Just remember to plug back in as one of your recovery tasks before you depart the lake.