Another thing I like to do sometimes when I find a great liquid eyeliner formula is use my own applicator brush. I buy really fine brushes at my local craft store and they work great. I really like the Revlon color stay liquid eyeliner so I usually use that one with my brushes. Then I just dip the brush in the product and apply it. It is really easy, just make sure you have high quality bushes and wash them after you use them.