Before you get settled in; take pictures of everything...seriously. Walls, floors, cabinets, doors, sinks, and appliances - document everything you can.
Some landlords are not exactly scrupulous and may try to screw you out of your security deposit later on. Once you move out, you'll get a bill in the mail for an obscene amount of 'damages' in hopes you will not respond or pay. With pictures, you can take the bastard to court.
Once you move in; take pictures of everything you have again. Keep a file of serial numbers of big ticket items and their receipts somewhere too. If you happen to go on vacation for a week and your place was robbed, you'll have an easy time filling out police reports and dealing with your insurance company afterward. I learned this the hard way.
If you ever have any complaints about neighbors, broken appliances, water leaks, vandalism, or anything that requires you to call the landlord/front office; document it (time, date, who you spoke to, etc).
If 6mo down the line you're 2nd guessing yourself about renting where you are, you may be able to break your lease if you have documented that they have not fulfilled their terms.
I'm not sure where you're renting but if it's a college town there's a 100% chance that there will be scumbag landlords, predatory towing companies, petty crime, and theft during school vacations.
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Other tid bits;
-Buy a nice vacuum. If the landlord allows pets, there's a good chance something has pissed on the floor before. Use some Arm & Hammer carpet deodorizer before you start putting furniture everywhere.
-I'd also buy a few extra filters for your furnace/air conditioner. Landlords do not like to change these.
-Try not to use credit cards/department store cards for new furniture. Sounds obvious, but you can get into trouble pretty quickly. Bed, couch, coffee table, and a TV stand is really all a man needs. That's $250 at the Goodwill or $3000+ at a new furniture store. You're choice.
-Ortho Home Defense is amazing stuff. Spray it around your windows, doors, floor moldings, corners of walls and you'll never have a bug problem. (lasts 6 months)