Just doing a bit of a spring clean and cupboard clear out (again), and I can't believe some of the items I have had squirrelled away and for no good reason other than I just haven't had the heart to let anything go. Amongst many items of many ages, the one which brought a smile to my face was an item that I had bought at uni when I first started my engineering degree some 21 years ago:...... A Slide Rule!! In fact I had two identical ones, so I put one in the bin. Just cannot bring myself to let it go even though the most use it'll get will probably be when I'll whip it out to amuse the grand-kids (as and when that happens!!). What's the least useful thing you have held onto, how long for and why?