All online (except for rent), and all manual (except cellphone is automatic). I like to review my bills before I pay them so I can make sure there aren't any funky fees on them, and I pay them as soon as I get them.

Missing or forgetting bills is a foreign concept to me. I don't think I've ever paid anything late. I did turn in my rent on the 3rd of the month instead of the 1st once, but that's because I know I have a 5 day grace period.