One of the easiest apps. I have come across for earning free money for things you are already buying is Ibotta. First you need to download the app. and if you are not already a member, you can sign-up here: http://ibotta.com/r/bHfww. After you download the app., you can go to Offers and look at the items which will give you a cash back on your purchase. Complete the tasks. The tasks are usually very simple such as answering a poll question, watching a quick ad, etc. Once you complete the task, buy the item at the store and then receipt the receipt using the app. You should circle the item you purchased and then submit the receipt. Within 24 hours, you will hear back whether or not your receipt was submitted. Once you have money in your account, you can ask for the money to be sent via Pay Pal to you.