Caving And Potholing

My sister is a skinflint, what should I do?
She is my long-lost half sister. I was so looking forward to her visit. I thought that we would have a girly time, doing make-overs, eating pepper mints and watching movies. I decorated her room with a poster of a cave – caves and rocks are her hobby, she is writing a thesis to become a doctor of geology – subscribed to a magazine “Potholing monthly” to give her one issue; but she was so cold! It’s like she has no feelings, and her miserable mouth never cracks into a smile! On Friday night she wanted to do accounts and to workout with a water bottle, filled with sand. When we went grocery shopping, she wanted me to buy a sack of potatoes and to get some murky rotten bananas because the supermarket gave them out for free! I want to eat normal yellow bananas! She said that I should not buy glossy magazines or an orange juice – that I should get the magazines from the library for free, and to drink tap water with vitamin C. She is a skinflint! What should I do?
Your sister’s not a skinflint – unlike you, she is a wise shopper – she doesn’t buy everything in sight willy-nilly. You could learn a lot from her.
Giants Hole Round Trip