Since younger people have a different sense of order from older people this may well become the most used of all the codes.
If you know exactly where everything is, why is it a disorder? There is some truth in that claim. Adults believe, however, that a training in tidiness carries over into many other things- including thinking. Also, if anyone else has to deal with the situation then a 'personal order' may well be total disorder to anyone else.

For whatever reason, justified or not, parents are forever exhorting their children to be more tidy.
'Let's have a bit of 8/16 here.'
'8/16 please.'
'You can - but after an 8/16.'

It is possible to extend this code from its immediate meaning to different situations.
'8/16 your thinking on this.'
'This is a financial mess; 8/16 is going to be the mode for the next few months.'
'He's not very 8/16, is he?'