assuming you're paid once in the middle of the month and one at the end/ start of the month, what we do is set most of the second paycheck aside for our mortgage payment. we use most of the first paycheck for bills, living expenses, etc. for the entire month. i suppose it depends on how much your rent/ mortgage payment is. our entire budget is based on my salary (my husband is freelance and his income is sporadic), so we contribute to our savings from his payments come in.