For me it would depend on the condition of my soil to begin with (and how much you are willing to spend). If it was without much organic matter I would be putting doses of corn meal/cracked corn on it in between my protein applications as long as it decomposes quickly enough. Since you are in Orlando I would guess the decomposition rate is fairly quick relative to my area which is still mildly humid with below average temperatures. This would help your water retention in the long run especially if you have a sandy soil. Purely for fertilization I would probably fertilize with alfalfa/sbm/cgm every couple months, more if you have bermuda.

You've been reading the other lawn forum, haven't you! That's the only place I mention skipping the 4th of July. With organic you can fertilizer in the summer. With chemical ferts, you should not fertilizer in the summer. I find that if I skip the 4th of July, my lawn is quite yellow by Labor Day. My federal holiday schedule came from watching it turn yellow and then thinking back to the time when I could have/should have fertilized. Your mileage may vary.

Oh yeah do I ever need organic material in my yard. My soil is really bad sand. So I should fertilize again this weekend and July 4th and then labor day, huh? That's almost what I though then. Thanks guys.