You can make a healthy spread to use instead of butter on toast, grilled sandwiches, etc. Take some olive oil and pour it into a small jar or other container. Set the jar in the refrigerator and the oil will solidify to a spreading consistency. If you have trouble getting your particular oil to solidify, place in freezer for a day then remove to the refrigerator.
This is another great example of a simple way to improve your diet on a regular basis.