From the cleaning lady's perspective Passover includes a good deal of madness. To start with, observant Jews have to clean all the leaven out of the house. This can mean that the cleaning lady gets a free loaf of bread, or maybe a bag of cookies. It also means that the cleaning lady hunts crumbs from floor to ceiling. I also have the pleasure of cleaning the oven. When I started in this line of work, I had one steady client, a very nice orthodox Jewish lady. Two weeks before Passover, I broke my arm. Cleaning her oven became a joint effort. But we got the job done.
I also worked for a Conservative Jewish lady, whose daughters didn't come home for Passover, as good Jews are expected to do. It wasn't my fault, but she gave me HELL for three weeks before the holiday.   
Easter's a challenge for those of us in the cleaning business. But it isn't half as much work as Passover.