Suppose I have a SaaS application which has several subsctiption plans (think "Basic" for 2 users and this much of storage space, "Starter" for 5 users... you know the drill)
What will be the the best choice of a tier when creating a time-limited trial account? Signing up for the most beefy (and hence the most expensive) sounds like cheating, but less expensive plans might not have all features available.
I was thinking of creating a somewhat limited "Free Trial" plan which would have all the features available and then warning users as they go along: "if you create one more widget, you'll have to pick an Advanced plan". But again, this might very well scare them off and will generally require a lot of special-casing code-wise.