She does my hair at her salon, so i'm like any other customer..... but she gives me friend discounted prices. I dont know what to tip!?shes charging me $40 for color $20 for cut and $8 for eyebrow waxtotal: $68should i just tip off of that price?? or should i give a little more since she hooks me up with friend discounted prices or what?? (i dont know regular prices either...?)we are both pretty tight on money...esp ME!! i mean i had to budget just to get this stuff done! (and i need it...its been since april! lol so dont tell me not to go get my hair did! hehe) so i dont want to completely stiff her on a tip!PLEASE HELP!