Wow- you'll have to let us know what you do with it!
I switched from lard to tallow for my soaps. (Not all of my soaps have animal fats in them, BTW. Some people want an all veggie soap, and I also prefer all veggie for the ones I use for facial soaps. So, about half and half of all of my varieties, I would guess). I still prefer lard for use in greasing pans because it is so much softer. Tallow works, but is harder to work with. We also made a tallow candle for fun (otherwise, we make our own soy candles). It did smell a bit like beef when burned, but not enough to bother me. This is coming from me, who complains all day when Dave renders fats!
I've started (slowly) getting into the habit of doing all of my sauteing with chicken fat now that I don't currently have butter. When I make my chicken stock (or turkey like this week), I allow some of the broth to cool in the fridge overnight and skim off the fat in the morning. This is wonderful, and really healthy. I say slowly because old habits die way too hard- I'm so used to grabbing the extra virgin olive oil when out of butter. It is an expensive habit, and one I need to break since I have this wonderful fat right here!
Whew- that was a lot of words to say that I'm always looking for new ways to use the resources we have