Cutting your hair a few times a year will keep it healthy. After a while, hair will get damaged and will end in "split ends" which keeps new hair from growing. So you need to keep cutting your hair to remove the split ends and make way for new hair growth to take the place of damaged hair.
First of all, do lil Wayne need to cut his hair?The correct grammar is DOES lil Wayne need to cut his hair... Moron.
Hair is a word that can either mean one hair, or just hair in particular. When you say "Hair Cut", the word "Hair" is plural. There is no need to pluralize it with an 's' on the end.
2to4 inches
You obviously don't cut your leg hair. You need to buy a shaver and shave it off if that is what you are asking me.
2
Look in the mirror.
Not in the U.S. You do need a license to cut and style hair, but anyone can answer the phones.
At home or not, you need a license to cut hair in most states.
You don't need a certain haircut... If you want cut your own hair so you get exactly the way you want it.
To avoid split ends
the answer Your face
Privacy and a hair cut