Some of the daily deal sites that I visit regularly are:
Groupon is one of the biggest daily deal sites around because it offers so many great deals and has just branched out in the St Louis area to Groupon Now deals too. I check Groupon out every day and I sign up for their emails so I don't miss any of their good deals.
Go here to check out Groupon. This is a must for us frugal shoppers.
Living Social is another daily deal site that has lots of good deal for you to choose from each day. They are big enough that they get lots of national deals as well.
Go here to check out Living Social.
Eversave is smaller than the other 2 daily deal sites, but I have purchased so many awesome deals from them that I would not being doing my job if I didn't tell you about them. They do more than one deal a day and most of them are national deals. This site is a good mix of well known and new products.
Go here to check out Eversave.
Plum District has deals for moms. I find that their site carries lots of unique products and I have found many nice gifts on this site.
Go here to check it out.
Save More is new to the daily deal arena, but they are offering $10 to every person that signs up and that makes for a very good deal!!!
Go here to sign up for Save More and get your $10 credit.
Morgan's Deals is local to St Louis. (They also have deals in Kansas City, Colorado Springs, Austin and Fort Collins). I like to take a look at this site because I have found a lot of retaurant and local business deals. It's a great way to try some new places or get a great deal on some where you already go.
Go here to check out Morgan's Deals.
I do post deals from some other sites, but these are my favorites.