It's funny seeing people microwave their butter n'stuff.

Ever heard the "like hot knife through butter" saying? Yeah. Grab the knife, run it under hot water, cut off a small "slice" and spread it. If it gets colder from the butter, run it under hot water again. Also a possibility - boil some water, put the knife in the bowl with boiled water and use that for more efficient spreading. But ya, hot tapwater does great already.