how to save money on your Xmas lights this year

We've got a neighbor that goes nuts during the Holidays with lights and decorations. We call him 'Sparky' like the Griswolds.
I came home from work a couple of weeks ago and just knew that Halloween was only a few weeks away because he was starting to put his Christmas lights up. He does a bit more every weekend. I think he's had to get his electric meter mounting reinforced because it spins so fast during the Holidays - I swear it almost sounds like 'blower whine'!