Africa Daley-Clarke Founder of lifestyle platform the Vitamin D Project Best: installed glazed internal doorsOur previous home was a social housing flat in London with two bedrooms, a front room, kitchen, bathroom and small balcony. It was cramped, dark and in a state of disrepair when we moved in, so we decided to invest two-years’ of our savings into renovating it. Our best decision was to replace the solid hallway doors with glazed vintage one from englishsalvage.co.uk. (Their search function allows you to filter by measurements, which I haven’t found anywhere else.) The glass let light filter through the entire…