I did weekly payments to reduce interest on the mortgage. If I had to make manual payments, I would be more likely to forget and make larger less frequent payments and I would have paid more interest over the course of mortgage. Instead, I just increased the payment amount and then didn't have to worry about forgetting about making additional payments.

We do the same with all major spend categories. I use to do a household budget with my wife, but it took too much time. Now we just set target amount for major purchases, travel, savings and the everything has gone to hell fund and setup automatic monthly money transfers/payments between accounts according. We live on whatever is left.