Lots of them.
While being able to feel my ribs again is nice I wouldn't go through the past month again for anything.
Tip 2 - if you ignore tip 1 and end up subsequently incapacitated and dreadfully ill try Lucozade. Lucozade really is my best writing tip - I couldn't even move around my house at the weekend without holding onto the furniture or walls but a couple of bottles later and I was propped up at my desk writing.
I may end up in a diabetic coma (in which case it's been lovely knowing you all!) but I always think it's important to get your priorities straight ;-)
Tip 3 - have a read of Joanne Pibworth's "Sequins and Secrets" over at the New Voices site, it's a corker :-)