Here are some sites that I have found useful for saving money:
This site is just not for weddings! It has ton of great party and home decor products at great prices!
This is one of the best coupon/freebies site I have come across. It is updated often, and has a keen eye on all deals.
Coupon mom is another great coupon website. It requires a member log in for some items, but the weekly emails keep you abreast of the latest printable coupons.