Fantasy, Magical, Romance, Dystopian, Religious, Post-Apocalyptic, Zombies (but the plot has to consist of more than just mindlessly murdering the undead), Steampunk
Practice? I don't know... I've been cracking eggs since I was little bitty and now I only get shells in the egg when I'm not paying attention. But I've also learned how to get them out really easily... So there's that.