I don't know about you, but saving some money always gives me a kick. Since you can often find better deals this way (and a little because I live in what the upper crust might refer to as "BFE" and sometimes it's just easier to shop while I'm sitting on the couch than driving all over creation), I often order online.
A while back I heard about this site called "Retail Me Not". It's a user-contribution site, where people from all over can share their coupon codes. You simply plug in the site name or URL in the search bar and it will pull up all the available codes in its database. Some are for free or upgraded shipping. Some are for incentive goodies or services. Some are worth a percentage off certain products, or even your entire order. You can also find grocery and other printable coupons here. Expiration dates are usually provided, and there is user feedback so you can see how successful the codes worked and how much savings others had using the codes.
Most often I refer to this site for my insatiable scrapbook supply
If you ever order anything on line, I just wanted to pass this little reference on to you. Bookmark it and check it next time you want to buy something - you just might find some free money. What's better than saving some cash in the process of whatever you're doing? :)