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.
Message Bender - Backup and delete all Slack messages in bulk
DocuPost - Sustainably mail letters, checks & postcards online from 75¢
Slack Deletron - Delete files from your Slack Workspace!
Future Me - Send an email to your future self
Slackin - Create your own public Slack chat community