Because I was curious, here are the days of the week that the expert used for the travel:

  Sunday:    1
  Monday:    1
  Tuesday:   5
  Wednesday: 1
  Thursday:  3
  Friday:    1
  Saturday:  0

One other dimension of purchasing tickets is when they are bought. Prices fluctuate; do you have any thoughts on incorporating expert advice on waiting for a last minute fare or otherwise optimizing the purchase date?