I made my own fairly simple spreadsheet; it's not hard to make or maintain, and SO HELPFUL!
First three columns list each of my monthly bills, their due date, and how much they are (if it's a bill that varies by month like water or power, I update that last column every time I get a statement). Then there's a total below that last column; that my total to pay my regular bills for the month.
Then I add two more columns. I get paid bi-weekly, so the next column just splits all the bill amounts in two. I total that column, and that's how much I have to take out of my paycheck every two weeks and deposit in a checking account I use only for paying bills.
The column after that multiplies the previous column by 1.1, or increases the amounts by 10%. That's how much I try to take out of my paycheck and deposit into the bills checking account.
You don't really notice that 10% difference, but boy it helps! If a bill suddenly goes up, you have the money socked away to cover it. After a few months of putting an extra 10% into a bills only account, you'll discover that you have a month's worth of bills saved up. Then two. Then three. When you realize that if you're unemployed for three months you can pay yours bills, even without unemployment? That's a gorgeous feeling of freedom.