Parking on the grounds costs $2 today and $3 tomorrow through Monday.
The Bush administration has estimated that the new drug benefit will cost more than $500 billion from 2006 through 2013.
The campaign would cost about $15 million through the end of the year.
The program is expected to cost $400 billion through 2013, but that is just the start.
Flights for three adults and two children cost £3,164 through lastminute.com (0871 222 5969).
A round trip (an hour each way) costs $20 and $15 for ages 3 through 12.
Interviews with 200 such customers would cost around £2,500 through a market research agency.
The defense cost the firm $10 million through mid-November 2005.
The program was at first expected to cost $31 billion through 1993.
They each would cost more than $2 billion, through a mix of public and private investment.
