Jon Barbuti 
Learning to Teach with a Hangover [PDF ebook] 

This book covers a great number of issues, ranging from turning up in school with a hangover or being chronically overtired, right through to dealing with parents and going on school trips. It offers more in the way of advice, written in a way that avoids being patronizing, instead coming from the perspective that these little problems and challenging moments happen to everyone and, in the long run, are not worth getting too stressed about.