Breast'em and smoke'em. If you stack enough to need it, there is a tool out there that makes it easy. www.WaterfowlJunkie.com
Its the Bird Hitch. I dont shoot enough to need it, but it looks awsome. There is a video on youtube about it too. Anyway, if I dont have time for smokin, I might toss the breasts in a bag of Italian dressing and just grill them. Thats just my 2 cents.

I will pick a duck and put a couple stuffed with orange slices and covered with maple bacon slices in a crock pot.

I bone my geese because I shoot so many I'd never have room to keep all the carcasses in the freezer. Also, I like the meat better if they are skinned, sliced into strips, maranaded, and BBQed. Formerly I would pick all the good feathers and down for pillows, comforters, etc. But my hands are going to pieces with arthritis after so many years of doing that (especially thumbs) so have had to give it up. I only skin my geese these days. The thighs are the best meat on the geese as far as I'm concerned. Lots of meat on drumsticks too but kinda fiddly getting them picked clean. No pain no gain. As far as I'm concerned, if you only breast ducks and geese you should be charged with wasting wild game. There is nothing better in this world than roast teal legs. They are tiny little morsels but man are they good eating!

A good filet knife is indispensable.