I promised Ale that once she finished reading The Most Famous Egg in the City, I'd buy her a new book... well, she finished, and she already asked when we can go buy the new book!
The good news is: my debit card gives me points and, I can exchange them for $10 gift cards at some bookstores (900-1100 points depending on which bookstore)...I have 813 points...so, if I add this week's gas and grocery bills, I might have enough to get a gift card!...I can then tell her that she's allowed to buy any book(s) she wants, provided the total does not exceed $10!...
If not, I can use the debit card to buy the book, restricted to $10, and save the points until I have enough to buy a $15 gift certificate for the supermarket ....