My girlfriend wants me to buy a vapor machine thing, but I don't like those things (they smell funny, they remind me of stressful times as a kid, they cause mold, and they make noise while I'm trying to sleep), and I don't like spending money and I REALLY don't want to get off the couch right now.
Similar to Rocket's suggestion but not quite. Get a small wash pail (face basin? idk what to call it, any heat resistant, wide brimmed receptacle will do, think mixing bowl) fill with hot water, you might want to boil some at a side so you can add to it as it cools but you don't want boiling hot water in the pail because you might scald your face. Fill it about halfway through and so that the steam that comes up feels comfortably warm on the back of your hand. Lean over the steam with a towel tented over your head. I'm told eucalyptus ointment (the liquid kind, not the goop) can also really help, but be careful to just put a drop or two, too much will sting the eyes.
Note: Don't use a bowl you plan on eating out of if you can help it. But if you do, maybe omit the eucalyptus.