After leaving the initial parts glued overnight the third storage box assembled without problem but the fourth was a right pain. I can only assume slot and tab laser cutting of wood is subject to a tolerance and get ones at the extemes and they may not readilly join. Anyway after some filing the fourth is together and currently weighted down by five heavy bottles of cleaning products.
Lining of the drawers with tissue paper resulted in the double sided tape running out. Sainsbury's visited again. Milk, current personal 99p offer on 2x pints, was a little disappointing with no latest dated advance on Friday.