This is my first fall in NW Washington (Whatcom Co., in case you didn't notice my username). I've got several large cacti and succulents on a south facing patio. Sorry, I don't know the scientific names, but I've got a jade plant, column cactus, crown-of-thorns, and something I call a "brain cactus" with crenolated fans (it looked more like a brain when it was a baby 20 years ago.) I plan to bring them in for the winter, but I'm not sure just when. We're supposed to be getting lows in the mid- to upper-30s next week and I'm concerned about them. On the other hand, I've got limited space inside for them and I'd like to wait as long as is safe. Where I last lived, I kept them indoors all year since the summers were hellishly hot and the winters arctic. Any advice?