I think Future GI Guy has the right idea. I, too, paid all my bills in advance while an undergraduate. However, one thing that I found EXTREMELY interesting was that landlords were MORE THAN WILLING cut you some slack on rent if you paid ahead like that. I would pay for the year and he cut 50 bucks a month off my rent!!!!!!! It's quite a lump sum at one time...but that's a discount of 600 bucks a year!
Don't be afraid to ask about that! I never tried it with normal utility bills, but you can always check to see if your city/town offers 'budget billing', where your bill for gas, electricity, whatever...is that same every month. That way, you don't pay a fortune in the winter for gas...or a fortune in the summer for electricity while using the air conditioner. It was the same, easy payment all year with no unexpected increases.
Another thing that is handy is a Sam's Club calling card. 4 cents per minute!
As for credit cards..they can be dangerous. I have had my share of problems with them. However, if you are disciplined enough to pay it off EVERY month...they can work to your advantage. If you are in school far away from your parents...put stuff on your credit card and, perhaps, earn enough miles to fly home free once per year. My husband and I put EVERYTHING on the credit card (bills, groceries, restaurants, etc..), but we pay the balance every month. It not only cuts down on the checks we write at 'bill time', but it also earns us free points that we save up and use only once a year. Ours is a Cabela's Visa..and when September rolls around, he has 4-500 bucks worth of points where he orders all his hunting stuff for the year. However, it does take discipline.
As for MAKING MONEY while in school...the easiest way I found to make cash without actually having to work is to offer to house/dog-sit. It takes no work at all..and you get to study. It won't make you a fortune...but it's cash.
I was never too fond of having roommates in college..but I did it for a while. It did help with bills, but ultimately, I liked my privacy more.
Also, there are ALOT of places that give student discounts....and that applies to medical students, too. It never hurts to ask while you are at a restaurant, pharmacy, bookstore, etc. I have a friend who owns a restaurant..and he was just saying the other day that giving discounts is the best way to get the students in there.
Another way to make some cash...on your breaks..apply for a substitute teaching certificate. It can earn you from 50-100 bucks a day, depending on the school district. They will call early in the morning and if you can't...just say no and they will call the next person on their list. However, this process takes a while with the background checks and all. So, if you are interested..you need to get a hold of the school district office ASAP.
Another thing with landlords...(my husband and I used to own rentals)...they have to pay quite a bit of money to have someone come and do repairs. If something happens, offer to fix it yourself if you know how. We always took money off their rent if they could fix a leak themselves, or even mow the grass for the summer. It was worth it to us to not have to worry about it.
Of course, your landlord should pay for any materials needed.
Well, I hope some of this helps. Best of luck.