I will be OK on the dress front this year.
DiL has some specific kitchen/cooking/food requirements, and is happier left on her own in the kitchen (or just with DS, who is familiar with them) so I will be ensconced in the living room with DD, son-iL, grandson, brother, Sis-inL, the drinks and the nibbles, with Ds and D-inL popping in and out with updates on the cooking and to refill their glasses.
Any sartorial misadventures will be from dropping sprouts into my lap or gravy down my front.