Cliff, it sounds like your customers are more on the ball than most!
It baffles me when I take in a wedding sampler, finished two weeks ahead of time, and it is during the Christmas season. Those people are waaay scary, they are so efficient! I have also had more framing done for house beautification before parties than actual gifts, so far. Interesting.
I imagine your turnaround reputation is helping with biz! Keep up the good work, and let's hope your procrastinating customers don't come in on Dec. 22!