I've tried ALL sorts of foundations both high and low end. I have very oily skin and my foundation would always look shiny after only an hour of wear. Then I found Revlon Colorstay Foundation (for oily skin). I've worn it for up to 12hrs with no shine. I've been using this for a year or more and I'm still very happy with it. The key is to apply it with MAC's stippling brush or a beauty blender.
I always, always come back to L'Oreal Voluminous Mascara. I get the curved brush addition in black.
I just found this product (recommended by the Makeup Geek) and I love it! I was looking for a powder alongside of my foundation to combat my oily skin. Maybelline Dream Matte Powder works great, but be sure to always apply powder with a brush and not a pad!
What are your favorite drugstore makeup products?