Personally, when it comes to drugstore Concealers, I think Maybelline do the best ones, I love, love, love the Eye Eraser, as well as the Better Skin one (keep an eye out for reviews in the next few weeks). When it comes to their Coversticks, I own two shades, 21 and 22, the lighter one for any features I want to highlight and the darker shade for any blemishes or/and imperfections.
First off all, what I really like about these is the packaging, the slim stick makes them the perfect handbag essential. I use 21 regularly for a natural brow, inner corner or cupids bow highlight, I wouldn't recommend using them under your eyes though, they're just not as creamy and therefore quite a bit of dragging is involved while blending into larger areas.
Nevertheless, they're pigmented enough to cover even angry, red spots and also hold up quite well when it comes to longevity, even though I'd recommend setting with a bit of powder if your skin tends to get very oily throughout the day.
All in all, if you're looking for something you can even throw in the teeny tiniest handbag you own, look this way!