TS,

Your friend is one of the many who has credit card debt. First of all, your friend really need to sit down and concentrate on financial planning, before he started anything, ask him to set a goals to clear the debt, for example to clear the debt in 1 or 2 years, always pay more than minimun payment. Secondly, ask him to go shop for a balance transfer credit card that has lower interest rate or get a personal loan with lower interest rate. Thirdly, he need to start doing budgeting for every month to track where the money goes and spend wisely. The ultimate goals here is to spend lesser than he earn. No turn around to it.

Lastly, it's all depend on self-discipline, no matter how perfect the plan is, without discipline the plan will not go further.