Weed suggestions?

Alright, so I'm pretty new to smoking. Been doing it on and off for the past two years, but mostly just bumming off of friends. But I'd really like to buy my own shit. I just wanted to know some strain suggestions for someone not too experienced. I guess I want something cheap that doesn't suck ass.
Also, some tips on how to be able to smoke in my room without the 'rents finding out. The house is kinda small and the rooms are pretty close. But I don't know if my mom would really be able to tell because there have been days when I'd come home pretty blasted and she just thought I was in a good mood and then later I would smell my clothes and the smell was pretty obvious.