... Body: Hey Product Hunt first time posting here. I'm building Remindr, a lightweight tool that connects to Stripe and automatically sends polite escalating reminder emails to late-paying clients until payment lands then stops immediately. No new invoicing workflow. Just a follow-up layer on top of what freelancers already use. Check it out: getremindr.app I validated the idea before writing any code put up a landing page to test interest first. Would love to hear from anyone ...