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!
TempMail - Temp Mail is the provider of fake and temporary email ID.
Splittable - Shared living made simple
Mailinator - Any Inbox. Any Time.
EquiTable - Split the bill fairly
10 Minute Mail - Temporary disposable e-mail service to beat spam. Avoid spam with a free secure e-mail address.