I have cleaned my bike in my kitchen when it was too cold and wet outside. I put it on the stand, took the wheels off, gave it a wipe over with a damp rag (not damp enough to drip on the floor), took the chain off and scrubbed it in the sink, took the cassette off and scrubbed it in the sink, cleaned both wheels over the sink, then reassembled. My wife is remarkably tolerant of such things, especially when it's her bike that needs a clean