Down to the last nub in your favorite lipstick tube? Scoop it out with a Q-tip and put it in a small container, apply with a lip brush.
Got a perfume you love but costs alot? Mix it with an unscented lotion, you'll get all that great smell and make it last longer.
Coupons!! You can find them in your Sunday paper, use them at stores that offer to double the coupon price.
Tiered of your wardrobe? Set up a swap party with your friends and have them all bring items they no longer want or use. You will all get new-to-you cloths without spending a penny!
Ask for free samples where you get your cosmetics.