Your best route may be to stay on the I-4 until junction 55 HWY27 -then head north towards Clermont .After approx 5 miles you will go through a set of traffic lights at Sand Mine Road.There is a Publix on your left .Continue north for 1/2 mile and you will see the entrance to Lake Davenport Estates on your right .Turn right here -this is Florence Villa Grove Road and BB is about 1/2 mile down on the left hand side.
To get to Wal Mart you will need to head back from BB to 27 and then head north for 1 mile .You will see lights at Cagan Crossings turn right here and that is Wal Mart.
I have a good map of the area and routes to get you to Disney if you would like a copy pm me your e mail address.