We bought last year and got 3.25% for a 30 yr. The 20% down was not necessary, but we jumped through some hoops and got there. I think it is a great idea to get out from under the mortgage asap, but you don't need to stop investing for 10 yrs to do it. My wife is an avid couponer and consignment shop connoisseur. The only time the kids get new clothes is when grandma buys them some at Christmas. I'm a Dave fan, but I have not been able to abide by too many of his baby steps. We have a credit card, but don't use it much. I do use credit when it makes sense. We have started using the envelope system and really like it. It gives you a lot of tiny savings accounts and when the life insurance bill comes due, you don't have to dip into the checking account. Just go empty the envelope.