What to do with barbecue sauce
I like to take a nice center cut pork loin and cook it in a slow cooker (crock pot) for 8 hours in homemade bbq sauce.  When it's done, take it out, use two forks to shred it, then put the shredded pieces back into the sauce to coat.  Mmmm...homemade pulled pork.  Freezes really well in individual portions, too.

Another option is to use it to marinade a nice rack of ribs or three, bake it on a very low temperature for a few hours (or as long as a day), and then grill or broil them to finish.  I'd say the rib meat probably freezes well too - but ribs never last that long in our house!