By Charlie Conchie Each week Charlie Conchie interviews the biggest names in the world of finance and tech. This week he sits down with Louise Hill, the founder of kids’ money-management business GoHenry, which was taken over last year “I blame my kids,” laughs Louise Hill from her office in Farringdon. The founder of children’s finance app GoHenry used to stick an invoice on the fridge every time her son landed a new iTunes bill in her inbox. When he went to collect his pocket money every weekend, he would find a chunk of it already spent. “On Saturday mornings he stuck his hand out expecting…