The billing section of the DO web interface is pretty spartan. Yes, we can get a line-by-line report of items being billed and this is OK. It'd be very helpful if there were some quick-to-reference charts - like a pie chart with current breakdown of items being billed - at least at the granularity of classes of items (droplets, droplet backups, snapshots, load balancers, etc.).
It would also be helpful to see a chart of existing amount billed and expected monthly total should existing billed items continue through the end of the billing cycle.
A decent reference point would be the Ting.com billing interface.