 These include the efficiency measure, supported by Postmaster General Patrick Donahoe  of ending door-to-door delivery of mail for some or most of the 35 million addresses that currently receive it, replacing that with either curbside boxes or nearby "cluster boxes".This would save $4.5 billion per year out of the $30 billion delivery budget; door-to-door city delivery costs annually on average $353 per stop, curbside $224, and cluster box $160 (and for rural delivery, $278, $176, and $126, respectively).S.1486, also with the support of Postmaster Donahoe, would also allow the USPS to ship alcohol in compliance with state law, from manufacturers to recipients with ID to show they are over 21.