I'm currently undertaking the arduous task of painting my kitchen. It shouldn't be arduous. It's a tiny galley kitchen. The problem is the bright spark who painted it before me painted a latex over enamel paint without priming. It peels if you so much as look at it sideways.
During my investigations to figure out how to deal with this, I found these metal tiles (via Materialicious). Aren't they lovely? Did I mention they're self-adhesive? And require no grouting? I like them best when they're installed in contrasting patterns. Available from Interior 51.