Kittysplit - The easiest way of sharing costs with a group of friends
Unimus - Unimus is a Network Automation and Configuration management (NCM) solution designed for fast deployment network-wide and ease of use. Unimus does not require learning any abstraction or templating languages, and does not require any coding skills.
Tricount - Manage and share expenses with friends
Oxidized - configuration backup software (IOS, JunOS) - silly attempt at rancid
Splitwise - Splitwise is a free tool for friends and roommates to track bills and other shared expenses, so that everyone gets paid back. On the web, iPhone, and Android!
RANCID - RANCID - Really Awesome New Cisco confIg Differ.