I am always on the look out for good whites that I can use as a base for my manis! I bought Revlon's White on White for £1.99 from my cosmetics stall, so well worth a try.
The below photos show 2 coats! If I were wearing the polish alone and wanted a perfect finish I probably would have added a 3rd, but you can get away with 2 and it's definitely enough if you're planning to use it as a base for more polish or nail art (which I was, and I'll show you tomorrow!).