Postmarkr

A friend runs a small law firm. His office assistant spends ~2 hours every week printing, folding, stuffing envelopes, and running to the post office. He looked for solutions — everything was either enterprise with sales calls, or consumer apps for greeting cards. Nothing for an SMB that sends 5-15 letters a week.

So I built Postmarkr. Upload a PDF, enter an address, pay, done. Letters printed and mailed within 2 business days. First-Class Mail supported today and more functionality coming.

My friend's firm uses it weekly now. 5 minutes instead of 2 hours.

It's a side project, not quitting my day job. But curious if anyone else has built something for a friend that turned into an actual product — how did you decide whether to pursue it seriously?