Luckily, I forgot to bring my top and base coats for my toes and decided to pick up Sally Hansen's Double Duty Base & Top Coat. So, let me just hand out this disclaimer: I prefer all-in-one nail polishes. For example, base and top coats, shine and quick dry all in one bottle!
About: "All-in-one patented strengthening base and top coat works double time...for double protection. As a base coat, Double Duty moisturizes and hydrates nails with Panthenol. As a top coat, Double Duty protects with Nylon."
My sort of kind of review: I'm assuming this did exactly what it advertises because there was no shine and it took forever to dry. Also, I noticed a smudge. I haven't had a smudged nail in a few years. So...should you buy it? Sure, if you're not too anal about your nails like I am. In Sally Hansen's defense, there are a host of top and base coats you can choose from...
So...yeah...this retails between $4- $9 (depends on where you purchase it from). Also, you can buy this any and everywhere. Walk to your local gas station, I bet it's there. Drugstore, grocery store, Target, Walmart, Red Lobster... *shoulder shrug*