There is a snarl of traffic at I4 and Sand Lake almost all the time, especially trying to get on Turkey lake. If you don't know what lane you need you will experience misery. I hate it when I have to go over there. The Wal-Mart there is inconvenient from the Freeway and is busy even at 6AM on Saturday's.
Instead if you are coming across the 528 Bee Line to I-4 there is a Publix at Universal Drive, easy off, easy on, very little traffic. Exit to the right (north) and it will be immediately on your left. Leaving, turn right out of the parking lot and right onto 528 headed to I-4. And this Publix never has a crowd (I live right there).