Keeping the nose wheel up
If the runway remaining is long , there is no crosswind , the touchdown was nice and smooth , you dont want to wake the passengers and the aircraft is in good shape , then its OK to use the aerodynamic drag to slow the aircraft down , but put the nose wheel on before you run out of elevator efectiveness . Remember if anything goes wrong you will take all the blame . No aircraft manufacturer I know of recomends this technique . But it looks gooood . Some passengers panic because they dont feel the deceleration they are accustomed to and that may destroy any good feeling they may have had about the landing . So all in all I say get in the habit of getting the nose wheel on asap smoothly . One day in a long aeroplane and wet runway with a stiff crosswind you will pay the price or come close to if you dont . You gain directional control, reverse is most effective, the wing tips are further from the runway ie if there is any rolling it will mininise the tendency in swept wing aircraft for the wing tips to touch the runway , and maximum braking effectiveness will be achived with the nosewheel on the ground .
Regeards
VP TAA