Cashdo is a cashback site that offers you a small rebate on your purchases. They have a lot of Israeli sites, and even some international ones. You can use it to get cashback at Superpharm online, Steimatzky, and other Israeli websites, including Lastprice, Delta, Hamashbir and many more.
It's easy to use - most of the time you can activate cashback when you're already shopping - just be sure to install the browser plug-in and pay attention to the pop-up notifications from it.
Hope this helps you keep more money in your pocket!