i wanna squeeze more power out of my 2005 nissan sentra its just my daily driver so i don't really mess with it but i decided a lil more power won't hurt any ideas?

what kind of sentra/engine?

Cold air intake is always a good easy start. Then you might want to move into header/exhaust/cams. There is a lot out there. Manual or Automatic trans?

intake header exhaust is all basic, easy to do, will free up some hp and increase throttle response, gas mileage, and best of all, fun factor.
if you want more, get strut bars, springs/shocks, brake pads, tires, cams, pulleys, make a regular rice rocket out of it :p