I love using Tab for a Cause! It's a great way to support different charities without spending any money or putting in much extra effort. Basically, every time you open a tab or browser, a page with some ads will come up and the revenue will go to charity! They support a number of charities in categories such as education, health, environment, humanitarian, and water. Also, for every tab opened, you earn hearts which you can choose to allocate in any of the aforementioned categories. All in all, it's just a great way to give back without giving any money. You can find more information or joinLog In.