I got this information from another homeowner who recommended these beaches. I think their drive times are a bit off.
I have not been, but would love to know what anyone else thinks as well.
Both Clearwater and Daytona are very easy to get to from Orlando. For Clearwater take the I-4 West to Tampa and then Clearwater Beach is clearly signposted and just about 10 minutes further on. (Total journey about 1 hour). About the same distance in the opposite direction I-4 East for Daytona, again clearly signposted. The I-4 goes right to Daytona, you take the main highway straight through the town and come to a T-junction - the sea is in front of you with access to the beach in your car. (Don't even need a 4-wheel drive)!
Both are worth a trip -lovely beaches - St Pete's is just past Clearwater and this year won an award for the best beach in Florida!