Away message invite

Inviting people to a party through an away message. Eliminating the burden of picking and chooseing who to invite as well as the time to make phone calls.
Advantages: This works well when you can only have a few people over because only the people who read he away message will know. You won't have to feel guilty or make people mad when you forget to invite them.
Disadvantages: You might have unwelcome guests.

This method works best for last minute parties planned a few hours beforehand.