It is very easy to get caught up in the craziness of online coupons so I recommend only printing those you will actually use. Here are a few websites I use for online coupons.
Cellfire - Online coupons that link directly to your Kroger card (Dillons for the local readers) - no printing necessary.
Shortcuts - Another online company that links directly to your Kroger card (Dillons for the local readers) - no printing necessary.
Grocery store website - check your local grocery store's website as many have online coupons to print or download to your rewards card.
Coupons.com - you can always print coupons from this site directly from the sidebar on this blog.
Website of your favorite products - many of your favorite products have coupons directly on their website.
There are plenty more places to find coupons online but remember, I'm trying to show you how to save money on groceries without making it overwhelming. As you get the hang of this, you can easily add more sites to your list.