Tuesday is my busiest day too. My theory is that people talk about it over the weekend and intend to call monday, but by the end of the day they have put it off and procrastinated but make a good effort to make the call tuesday to be sure they can get in by the end of the week.
Saturdays for me! I have to get up at 7 am to work the phones... My second busiest day is Tuesday evenings from 5 pm -7pm Most cleaners here dont answer phones in evening and weekends.. except me