Use applesauce instead of oil when baking. You CANNOT tell a difference and it's way healthier. The other tip? When cooking with applesauce instead of oil, bake your item for less than the recommended time because it cooks a lot faster.
I buy a 6 pack of the pre-packaged containers of sugar free applesauce just for baking. I've used them in brownies and cookies and a few other things. Even the hubby says he can't tell the difference.
Who knew I would have so many tips that involve cooking? ME? Right?
Then again, most of them are ways to make MY life easier!