If you cannot handle the influx of people requesting your services after the coupons are bought, then don’t use Living Social or Groupon. The amount of bad customer service I have seen with companies using either of these coupon services is nothing short of amazing.
It’s really simple, these are great way for you to get more exposure for your business and get new customers. So you should be 100% prepared for the influx of people going to use your service. Don’t cancel shit at the last minute, don’t ignore emails and voicemails, don’t say you can’t schedule things. Be prepared and don’t screw up, otherwise the negative experiences will outweigh any kind of financial benefits you receive.