I am with OG, Bright Spark, ZacMaster, Hopkirk et al on this one. ' Brakes to slow, gears to go' is the technique recommended by the police and IAM. The only exception would be when descending a very steep hill and you are advised to select a lower gear to assist the braking.
I still use 'Heeling and Toeing' and double de-clutching occasionally just to keep my hand in so to speak, but I do practice and recommend 'Gate Changing', ( going from 1-3, 2-4,3-5 etc but you need to change at the right revs.
Now,here's another one for you, Tilly : 'Gas-Changes'. I throw it open.