In time for National Upcycling Day, Gumtree is on a mission to spread the word about upcycling and encourage the nation to cut back on waste. In celebration of the second annual National Upcycling Day which takes place this Friday (24th June), Gumtree is encouraging households across the country to consider upcycling items otherwise destined for a landfill. Whilst the sales of upcycled items on the UK’s largest classifieds website have increased by 50 percent in the past year, a…