I have been trying to find a quality clear nailpolish, which I thought would be an easy task. I have been sold top coats, base coats, OPI, and others, but they don't seem to work for me. Some turn dull and won't keep a nice shine when applied. Others seem to peel or flake off easily. Isn't there such a thing as clear nailpolish in the same formula as the color options, or do you use topcoats for clear? Anyone have great success with a particular brand?