So tonight at the table, I waited until the plates had been cleared, and then I made it quite clear that I am over the inherent laziness that permeates my children.
Rather than punishing, removing computers/tv/Wii ….. I tried a new tactic.
From today, all regular jobs must be done, when they are supposed to be done, without me nagging, and without the kids attempting to do them when I am in the offending room (ie emptying dishwasher when I am cooking dinner … a favourite game with miss 16).  Furthermore, if I have to ask anyone to do their regular chore, it will be accompanied with an additional job, and each and every time there will be another job added.
Mr10 accepted this new regime fine, but miss16 is quaking. She is the one that has be steadily shirking all of her normal tasks, with the “too busy” or “too tired” excuse …. but I am not taking it at the moment.
I will update on the outcome.