Wes posting, I built this one and I sell it in my shop, so that is the disclosure up front. GC Business Operating System, $69, once, at https://solopreneur87.gumroad.com/l/ptrpf , is a dashboard for general contractors that keeps jobs, clients, quotes, budgets, and change orders together. The change order view is the reason it exists. A change gets agreed in a hallway or on a call, the work happens, and the budget never sees it until the end of the job. Putting the change beside the budget it moves does not sound exciting. It is the page that stops the end of job argument.

Question for the thread: for anyone who builds tools for trades businesses, which single page ended up carrying the whole product for your buyers?