Here is another  amusing addition  to the pile of commitment techniques.  This is  analogous  to the software you can install that denies you access to the internet for an interval.  In this art project the artist suggests a service that allows you to mail you phone or lap top away on vacation.

There are services that allow you to store your stuff, using the mail for deposits and withdrawals.  It would be easy for such operations to add commitment services.

See also this art project.