Making use of leftovers

Some rich families might toss any uneaten foods, but not the royals. Chef Carolyn Robb, who worked for Prince Charles and Princess Diana from 1989 to 2000, tells racked.com that the family didn’t put food to waste. Charles would request only being served as much as he could eat, and any leftovers would be incorporated into the next meal. Roast lamb, for instance, could be mixed into Shepard’s pie.
Shopping for inexpensive clothes

While Kate Middleton and Meghan Markle are no strangers to designer couture, they also know how to look chic on a budget. Royal watchers have spotted Kate wearing Gap and Zara pieces, while Meghan is reportedly a fan of Everlane and J.Crew. It’s no wonder their fashion choices tend to sell out so quickly.
Keeping beauty low-key

Queen Elizabeth doesn’t reach for Dior nail polish when she wants a manicure. Instead, her nail colour of choice is a pharmacy brand that rings up at a cool $9 a bottle.