How do you graph your SaaS metrics/revenue from subscriptions and other payments?<p>Ideally, I'd like to visualize both length of relationship (i.e. individual and average length of subscription) and revenue from customers.<p>I've seen lots of examples with simple bar charts, but I'm looking for any creative solutions to this that you've seen or that you've come up with yourself.<p>edit: currently I only use simple line charts for revenue and a grouped bar chart for length of relationship. Any better ideas? Thanks!