Add a feature/option where we can set a mandatory minimum amount for something like on-site support. For example, set it to where each ticket gets billed at one hour minimum, then at 15-minute increments thereafter. Quite a few MSP's, and other small shops have a mandatory minimum of an hour per ticket in their contracts, even if it takes them 20 minutes to fix an issue. That way, they can have more standardized billing practices.