Dollar General Buy One, Get One Free GE CFL bulb rebate (ends 4/30/12)

I found a new rebate form today at Dollar General.  Buy One, Get One Free after mail-in rebate (up to $20)  if you purchase two (2) 13-watt or 26-watt Mini Spiral CFL one packs for $5 each.  This offer is only good at Dollar General.

Some details...

• You have to purchase them in twos (each cost $5)
• Participating products are UPC 0-43168-81470-6 and/or 0-43168-81688-5 (mix or match)
• You need the UPC symbols from the packages, so be sure to save them
• Max is $20 back (total of 8 purchased) per household.
• Purchases must be made between 12/15/2011 and 4/30/2012, received by them by 5/30/2012.  Limit 1 rebate form --- so you'll need to make all your purchases at one time and send them all in on one submission.
• The form is available on special displays at Dollar General stores.  Purchases must be made at Dollar General.

How do you feel about CFL bulbs?  We use them, though not extensively in our home.  We only use them in lights that are encased with a cover since we have had some break and fall to the floor in the past (without us hitting it by accident).  The clean up of the mercury (ever read those instructions?) and treating it like a hazmat event concern us.