How about both?
A couple of fenders for the wife to clip on when docking and then you go ahead and tidy up the lines and fenders after the boat is stopped.
I would propose a compromise;
She hangs a couple of fenders with some fancy schmancy clip on things
You guide the boat into the slip
She ties off a couple of lines
You make things ship shape while she makes the first round
Those of you who freak out over spending 20 bucks on plastic thingies must spend way too much time mulling over prices on the wine list
or worse... how to split the check... eek!