When the the flaps are retracted in the climb, the two item (silent) "After Take-off" checklist is performed. Once cleared to an altitude with the approach set up completed and aids identified, the two item "Approach" checklist is performed. Once configured for landing we perform the three item "Landing" checklist so that will be done between 2,000' and 600'. On modern aircraft there is no need for the numerous, pointless, verbose checklists that some operators insist upon.
PM