I can't talk about money saving without mentioning swagbucks. Pretty much all my purchases on amazon are paid for with gift cards I bought from swagbucks using points I earned from doing simple tasks like answering the daily poll,and using swagbucks as my go to search engine rather than google. You don't earn points every time you search, but they do add up. There are other things you can do like taking surveys, making purchases on other shop sites, but going through their site referral links.
If you follow my referral link below I will potentially earn some extra swagbucks for you doing so, but you won't lose out on anything :)