Writing checks I voted for once a month, either to the dog groomer, who is cash or check only, and I never carry cash, and my wife to her hair salon, not sure why, never asked, maybe they don't accept plastic either.
So yeah the dog's groomer, and my wife's groomer.
All bills are paid electronically, either through my bank's bill-pay, or on the payee's website.
Very few automatic withdrawals, I like to control when they get paid.
Last check received was probably the $100.00 check my mother-in-law slipped into my birthday card back in March. So I went with once every couple of months.