It would be nice to be able to add a text balloon (or similar) to a certain day, to explain the high or low amount of bits. For example: on a certain day you might have eaten a lot of cake/pie. It would be nice to be able to say: it's my birthday! Or on a day where you haven't eaten so much: balance day! (balansdag!) - or whatever you might find useful. It's also a nice reminder for yourself (example: wedding day for wedding cake & champagne) & good explanation tool