As mentioned, mosquitoes are bad and the West Nile virus has been an issue in Miss. I would recommend bug repellant. You would think that traveling between casino's is the worst but I had more of a problem with the little critters when I was setting at the bj tables (particularly at the Fitz).

Also it is important to view a map of Memphis. I tried to follow written direction (yahoo maps) and got lost. Many times 55 will be running East/West rather then North/South. Of course I am from Oklahoma so I probably had a tougher time then you will.