I love that word "Necessary" or the "Do I need" it often seems to be used by those of you that are new to this...
If you use those words as qualifiers the answer is always NO !!! you don't need anything but some soap and a sharp razor (of some type) everything else is not Necessary/Needed..... Heck you could even drop the soap if yer either really Tuff or you want to plug in the razor :)
Tons of stuff we talk about on here is just for the Ahhhhhhh factor....