RE: supermarket secrets!!
When I was a kid my dad had an allotment, our spuds would be dug up when ready, put in big brown paper sacks and left in our shed, and they would last us a full year without growing or going soft, compare that to the crap you get in supermarkets, which goes soft and starts growing after a week of being opened. We grew allsorts of stuff and TBh it's one of the reasons i dont eat as much veg as i should, simply because compared to freshly grown stuff supermarket veg is crap. There is a lot to be said for good old horse manure as a fertiliser as our stuff was generally bigger than what you can buy today too.