A friend of mine just gave me a great tip on making her foundation last longer and she swears by it, so I wanted to pass this along. In order to double the life of your foundation, squirt a few drops of alcohol free facial toner into the container. Shake a bit and then apply as usual. The cleansing and moisturizing ingredients in the toner will keep the foundation from drying out and cracking. Now your foundation is a toner as well. 😉 So you can reap the rewards of both products and save time by doing so.