Go get a couple packs of uncured bacon (nitrate-free, etc.). Cook up the whole package, maybe eat some of it and save the rest, maybe eat ALL of it! Then, when you're done, get a coffee mug and pour the leftover bacon grease into the mug. Be sure to use the spatula to get every last molecule of that fat. Cover it with plastic wrap and put it in the fridge (I hear that you can just leave it out, but I feel more comfortable putting almost everything in the fridge if I'm not sure).
Then, the next time you sautee some veggies, or pan-fry a steak, get a big tablespoon and scoop out a sizeable dollop of that grease. Cook with it. Don't be afraid to add more if you need it. Delicious rendered animal fat.
The best part about this is that now you have an extra reason to cook and eat more bacon! "Oh damn, I'm all out of cooking fat. Better make some more."