A real one
From invoicing by hand to a product to sell.
Therapy practice billing
She was invoicing by hand. Now she has a product to sell.
She handled billing for a therapy practice and built every invoice by hand, in a spreadsheet template that chopped off long service names and pushed sessions onto a second page. She wanted more than a fix for her own afternoon: a focused tool other practices could use too. We built a multi-tenant web application where each therapist works in a walled-off space of their own, every total calculates itself, and every invoice comes out as a clean PDF that can be reviewed before it goes out. It is in production, and she describes month-end in it as fun.