I imagine you love coupons as much as I do or you probably would not be stopping by this site! While paper coupons maintain the highest redemption rate, the number of mobile coupons redeemed is expected to increase more than tenfold this year (up from just 4% in 2009), according to Harris Interactive.

If you want to start using mobile coupons, here are a few sites and apps to check out:

A&P: A&P launched a new program to offer Club Card shoppers mobile coupons by text message. Shoppers go online to opt in and input their Club Card number. Shoppers will then receive texts with coupon codes. Users simply respond and the coupon will be added to their Club Card account, and the value will be deducted when they purchase the item and swipe their Club Card.

Shoppers at sister stores Waldbaums, SuperFresh and The Food Emporium can also access mobile coupons by using a mobile web browser to add coupons while on-the-go to their loyalty cards. These special savings are part of the Red Tag Online Savings program.

Cellfire: Cellfire offers two options. Not only can you access Cellfire.com from your cell phone to add grocery coupons to your loyalty card for stores in the Kroger, ShopRite and Safeway chains, but you can also access mobile coupons to be used at restaurants and local retailers.

Just show your cell phone at check-out to redeem your coupon. I’ll be honest, though, the number of non-grocery coupons on Cellfire is pretty limited. I tried several zip codes and could find little more than coupons for Sears Portrait Studio and 1-800-Flowers.

Coupon Sherpa: The Coupon Sherpa application is available for free to iPhone and iPod Touch users. Just search for coupons and show the mobile coupon to the cashier at check-out to receive your discount.

MobiQpons: MobiQpons is a free app available for the iPhone, Android and Blackberry. Using geo-location technology, MobiQpons will pull up coupons for stores near you wherever you are. Or, sort coupons alphabetically or even by a list of your favorite stores.

Target: Target launched a new mobile coupon program last month. Just text the word COUPONS to 827438. Once registered, you’ll receive up to five text messages per month. Offers can be accessed at check-out by way of a single bar code on your phone. You can also sign up to receive a text when your local ad goes online.

Yowza: It’s impossible to have coupons on hand for every store or restaurant you may be near. Half the time when I go shopping I end up going different places than originally planned. If this is you too, grab this free app to get mobile coupons tailored to your exact location. Yowza is for iPhones and Android phones.

Do you use mobile coupons? Are there any services I haven’t mentioned that you’ve found especially useful? I’d love to hear about your experiences.

Have you signed up for Twitter yet? If not, you may be missing out on coupons and discounts on everything from travel to electronics to shoes and even to groceries! Here are my top-five ways to find money-saving coupons using Twitter. You can also follow me on Twitter at @ErinGifford for daily money-saving tweets.

• Follow Your Favorite Retailers. Where do you like to shop? Jot down a quick list, then head to Google. Type in the name of the retailer and then the word “Twitter.” For example, you might type Kohl’s Twitter into the search box. The very first search result is the link to @Kohls, the Twitter page for Kohl’s.

• Create Twitter Lists. Build separate lists within your Twitter profile so you can see on one screen tweets from all your favorite retailers and be the first to find out about coupons and special deals. Check out my blog post from December called For Holiday Deals, 15 to Follow on Twitter for a bunch of retailers, deal forums and cash-back shopping sites to follow for big-time bargains and coupons.

• Search for the Most Popular Deal Tweets. Head to Summize.com and type in the name of your favorite store along with the word “coupon” to see what pops up. I typed in Gap and Coupon and found a few online coupons and promotions. I also found a few more people to follow who clearly know their way around the deals! Check out CheapTweet or TweetMeSavings for the most popular deal tweets in various categories.

• Use a Money-Saving Twitter Coupon Bot. Try out CouponBot. Send a tweet to @CouponBot with just the name of the store you plan to shop, then wait to receive links to coupons tweeted back to you.

• Track Hashtags. Follow key money-saving hashtags to find great deals, coupons and freebies. A few to follow include #coupon, #coupons, #bargains, #freebie and #freebies, according to Fried Beef’s Tech. You can also enter the hashtags into the search box on your profile to see the most recent tweets.

Do you use Twitter to track down coupons and deals? I’d love to hear how it’s worked out for you.

A 2004 study from the U.S. Department of Agriculture found that the average American family throws away 14 percent of their food – that’s almost $600 a year!

I’ll be honest, this has been me from time to time. In the not too distant past, I’ve had to throw away cookie dough, sweet potatoes and asparagus because they spoiled or passed their expiration date before I got to them.

So, here are a few quick tips to save money by keeping food from going to waste:

• Take stock of the produce, breads, cheese and deli meats you have in your home so you don’t double up on these foods.

• Create meal plans around perishable foods to use them up before they spoil.

• Separate the club packs of meat and freeze them the day you go shopping to keep the meat from passing its “sell by” date.

• Use leftovers in next-day breakfasts and lunches. There are also a variety of cookbooks worth checking out that are dedicated to cooking with leftovers to make your food dollar go farther, including “Love Your Leftovers,” “Use it Up Cookbook: Creative Recipes for the Frugal Cook” and “Second Time Around.”

What do you do to keep from wasting money by throwing away food? Do you have any good second-day recipes? I can’t wait to hear your suggestions!