I have three tandems, and four or five singles... And only two skewers one for 145mm hubs an the tandems and one for the singles with their 135mm hubs. It so easy to swap from one bike to another I don't boter to set up each bike with its own skewers.
One thing that you will want is extra clips for the BOB hitch. The do come with little rubber straps so they wont get lost, but they dont last long and the clips get lost... I've even used extra spokes to make my own when needed.
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Bentbaggerlen
"When the spirits are low, when the day appears dark, when work becomes monotonous, when hope hardly seems worth having, just mount a bicycle and go out for a spin down the road, without thought on anything but the ride you are taking." - Arthur Conan Doyle