13-10-14, 12:23 PM
One sheet of paper is made from 2 smaller sheets - hence 2 ply or 2 sheets
Using 1 sub sheet and folding in half for a second wipe = 2 wipes. The second sub sheet provides a further 2 wipes. Total of 4 wipes from 1 sheet.
Using 1 sub sheet and folding in half for a second wipe = 2 wipes. The second sub sheet provides a further 2 wipes. Total of 4 wipes from 1 sheet.
Those are my principles...if you don't like them I have others.