Yeah, I bought one of those for the Planer. Very handy, but doesn't do too much for the floor space.
Some points others have mentioned:
I've also got a Workmate, but it mostly gets used outside the shop.
Shopvac is no longer in the shop, the new one is bigger than the last. Compressor actually fits in the offcuts storage hole, so it's OK.
I'm thinking of moving the DC to the closet next to the shop, which should help with the dust/Asthma and give me 8 more sf. Combined with the smaller bench I could get 20 more sf. It may not seem like much, but until I win the lottery.