I got my tire fixed but they noticed that the rim is bent on it slightly, nothing that should cause safety issues or whatever but gives me an excuse for an upgrade on them

Isn't it nice when things have such a nice up-side?

Speaking of getting tires fixed, I have been having some trouble with my left front tire. Every week or so, i have to fill it up with air because it keeps going flat. The tires on it are fairly new so I have no idea what the problem could be. Valve stem maybe? Is there something i'm missing? Any help?

Have you physically removed the tire from the car to look for any foreign objects in the tread yet? If it'* the valve or valve stem you can simply spray some soapy water on it to see if there are any air bubles. Personally, I would just take it to a tire dealer where they will remove the tire, find the leak, and patch the puncture(if that'* the prob) from the inside.