Girls I have 2 shaving questions (no nasty comments please)?

you don't have to use shaving cream but i prefer it because it gives you a smoother shave, and you can use a razor for about 5-6 times before you throw it away. for it me it varies because i can almost feel when the razor begins to get dull so i change it. but you dont want to use the razor so long because then it gets dull and you are more likely to cut yourself!! hope i helped!1