To curl or not to curl -- that is the question. When it comes to lengthening those lashes, most of us will go to great lengths to achieve a bright-eyed look. From pricey products to eyelash extensions, we go batty for anything and everything that will enhance our eyes. Ironically, the secret ingredient to a lovelier look is right at your fingertips -- and it can be yours for under $5. We're talking about the ultimate go-to gadget -- the eyelash curler. The price of curlers range from as little as $2.99 to as much as $20.00 (and sometimes more) depending on the make and model of the handy dandy instrument you choose. There are three different types of eyelash curlers -- metal curlers, plastic curlers and heated eyelash curlers -- but they all serve the same purpose. Although the techniques vary from person to person, here are the basics. Eyelashes should always be completely free of makeup.