I try to clean my kettle and other items as soon as I've set my batch in my temp controlled freezer. If I can't, I let them soak overnight.
I have to do my cleaning in the downstairs bathroom. This is where I store my kettle, buckets, and other big items that I need to drain, since I have a walk in shower that's never been used. I eventually want to add a good size utility sink in the garage, so I can keep everything out of the house (as far as cleaning goes).