Parties are fun but they provide an increased chance of spills -- Don't Worry
It is best to get to a spill as soon as possible and remove it. The problem is you can never find a towel when you need it. The trick is to put old towels under your seat cushions. Then, when the spill happens, reach under the nearest seat cushion, pull the towel out and stand on it to blot up and remove the spill. Periodically move the towel so a non-wet portion of it is on the spill. Keep up until all the liquid is transferred to the towel.