I used the Stanmore car park for the Charlton game end of Jan. Parked up Fri afternoon, picked the car up again on Sunday afternoon and it cost £12 in total. The car park's big, around 500 cars and right next to the station, about 5 mins off the M1. Watch out for works on the tube line. On the Sunday when we were heading back, the line back to Stanmore was closed from around the Wembley area - surely they can't do that next Sunday, can they???