cash or gift cards for room charges?

[maxiesmom]

Is it possible to give the front desk cash, and then have that linked to your room key for charging purchases? Or is there a way to do that with Disney gift cards? I try very hard not to use my credit card to pay for vacation expenses, and would rather not put it down on my room. I find I stay on budget a lot easier without using my credit cards! And I would rather not tote a ton of cash around either.