You can buy enough shampoo, conditioner and shower gel to last a month for £4 or less, obviously if you don’t have that £4 that’s different, but choosing not to buy toiletries when you can afford them isn’t thrift. My grandparents were young during WW2 and thrift was a way of life for them even though they were comfortably off. They grew their own vegetables, they fixed things rather than buy a new item and they used things until they wore out. They would never have dreamed of not buying essentials though, Jack’s definition of thrift is one they wouldn’t have understood.