$10-$20 Range: Sephora Collection Luxe False Lash or Sephora Color Switch by Vera Mona
Sephora Collection Faux Lashes ($18) are gorgeous and reusable. I picked Quill, a natural-looking lash that looks just as great going out as it would if worn to the office. There are plenty of styles, and they're currently on sale, too.
The Color Switch by Vera Mona ($18) is so genius. I have a professional cleanser for my bigger brushes, but for smaller tools, I don't like using liquid on them when I don't have to since the barrels are so small — I don't want to risk loosening it up. This easily gets rid of residue from your shadow so you can use the same brush with a different shade.