Peppermint tea is my saviour! If I'm feel like having something in between the packs other than water I have peppermint tea. It keeps me going. In fact I keep a flask of it with me for when I'm out. I am going to try it mixed with the chocolate pack too, to have minty hot choc!
I make up a huge pot of strong peppermint tea and then keep in the fridge to make up chocolate shakes. You then get a really nice ice-cold mint-choc shake. It actually tastes quite luxurious and yummy!