Read about which labels, box tops, etc. qualify, save them, and then turn them in at school so they can be redeemed.
An easy way to earn money for our school that doesn't cost you anything is by using Amazon Smile for your online shopping needs.
If you have ever shopped on Amazon.com you know how convenient it is and how much you can find on there. You will continue to shop the exact same way that you always do. The only difference is that when you first log on, it will ask you to choose a charity to donate to. Choose Thunderbolt Booster Club and that is it. A percentage of your total will be donated directly to the school. Once you bookmark the page, you won't have to ever remember to do anything again. You can also continue to use your current account if you already have one.