OK i am about to get a credit cardhow does this works?

If i buy something with it does it adds a lot of interest. like if i buy something for 50 dollars is my bill going to be 100 dollarsOK i am about to get a credit cardhow does this works?
For perfect credit you need to pay the bill in full the day it comes in.


You will pay no interest or fees of any kind.


Never do you need to ';carry a balance'; to develop credit.


It simply is 100% myth. /