InvoiceLabs lets you build a professional, branded invoice in under 30 seconds — no account needed. Add tax in any currency, download the PDF, or sign up free to track payments, manage clients, and take card payments via Stripe.
Add your washing machine, pick a cycle, get notified the moment it's done or a few minutes before, so you actually catch it. Works for multiple machines, shared laundry, and households where the "whose wet clothes are these?" argument happens weekly.