Borrowers eager to lock in a very low-rate mortgage should apply in the next day or two, says Bankrate.com mortgage analyst Holden Lewis.

Rates haven’t been this low since the 1950s, he says, adding that rates are unlikely to fall further.

“You can float, but that’s not a smart strategy. It’s like asking for another card when you have 19 in blackjack. Stand and take your chances,” he advises.

Source: Bankrate.com (5/26/10)