Letterflix - Send letters and snail mail online to the USA, Europe, India, or anywhere in the world. Letterflix is the easiest and secure way to send letters and snail mail anywhere in the world from the comfort of your home.
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
DocuPost - Sustainably mail letters, checks & postcards online from 75¢
Slab - Slab is a knowledge hub for the modern workplace. We help teams unlock their full potential through shared learning and documentation. Slab features a beautiful editor, blazing fast search, and dozens of integrations like Slack, GitHub, and G Suite.
Letter to Yourself - Send a physical letter to your future self
Second Brain - Capture & organize everything in Notion.