Docks are nice but traveling off them into anchorages or mooring balls requires an easy path to shore (not swimming). So last year on black friday I bought a West Marine PRU-3.
The PRU-3 in a two chamber inflatable that will hold 3 people (900#’s) and will fit in the boat without being tight. It came with a pump to blow it up and a pair of oars. Being the lazy old man I am I went looking for a small outboard and there I learned a lot.
Bottom line I ended up with an electric one (Torqeedo 1103C), which I got from Fawwcett in Annapolis with a small discount. It is light, total weight 38# or 29# without battery, has long run time (6 hrs at 1/2 speed, 20 at slow speed) and is equal to a 3hp gas motor. Not cheap but 2 year warranty and 1st service is at 5 years. No gas, no oil and can charge from either boat’s batteries, solar or dock AC. And waterproof to IP67 standard (it can fall overboard and still work). Even is so smart it will tell you how far you can go (GPS built in). Plus it is a classic case German over engineering!
So all I have to do is put in on dingy (it breaks down to 3 parts to make it light), press the on button and turn the handle and off we go.
BTW: the 12V charger option was $50 but I found the connector in my pile of old wall chargers and a 12V to 24V up-converter on amazon for $13 so I am good for anyplace.