AmeriGas is offering a $5 printable rebate off an exchange or purchase. This promo appears on the homegatinghq.com site where the Wholly Guacamole coupon I posted about today is available. To print this rebate, you will need to register with the site or log in, if you've already signed up.
Bear in mind that you are allowed only one AmeriGas refund per year under their terms, so search your mind (or rebate records!) if you've done one in the past. This offer is open 9/1/2010 - 4/30/2011.