How can bacon grease be repurposed?

I’m trying my best to be less wasteful, and to come up with creative ways to reduce waste by recycling, re-using, and/or repurposing things in my daily life. I know bacon fat can be used again for cooking, and I also know it’s not healthy to use it excessively. Are there any other things it would be good for?

Also, do you have any other repurposing tips for everyday household items that have outlived their original purpose?

Note: I’m classifying this Q as ” social” so we can be as creative as we want to be.