Buying Things Online
If you are like me, you spend a few minutes googling discount codes when you buy things online. Many times, you get a gift and find a 15% or 30% discount on something you would have already bought anyway. That is why I love Honey and Wikibuy. These apps are browser extensions that automatically finds and applies coupon codes at checkout with a single click.
Whenever you go to a check out page online just click on either of these apps (I like to do both of them!) and see if there are any discount codes out there that work. I'd say it works about 25% of the time, but it's so satisfying when it finds something.
Pros: Many times an automatic pop-up comes up reminding you to see if there are codes and the apps save you $$
Cons: Doesn't always work.
Links: https://wikibuy.com/ and https://www.joinhoney.com/