For sure, you must have things that we wanted to buy to go shopping. You should never go into a hypermarket or speedmart without a list of what you going to buying there.
Make a careful plan, repeat careful plan of what you’ll buy before you go, then stick strictly to that list when you go to the store. Don’t put anything in the trolley that is not on the list, no matter how tempting, and you’ll come out of the store saving a bundle.