15. Delete information from online sites
Ecommerce websites like iTunes and Amazon save your credit card information, so that you can easily purchase things from them. With this, you can check in and check out from the site in no time. However, this does not give you time to think about your purchase and you end up buying things that are not even necessary. Deleting your saved credit card information from these websites will let you think before you make a purchase, thus reducing frivolous spending.