I have general kitchen utensils (just broken the tin opener), assorted allen keys, a puncture repair kit and a nipple key.
I've just shortened the chain by a few links (new cassette), reattached it with Shimano connecting pins (the double length ones) but now have the extra poking through. No tools in the new house yet...
I'm being mostly sensible. If the chain isn't repaired tonight, I'm driving the wife to work....again...!