If your bank account is just as empty as the M.A.C. beauty products on your bathroom counter, then it might interest you to know that you can exchange 'em for a free lipstick of your choice, thanks to the brand's Back-to-M.A.C. Program. Think of it as an exchange program that's environmentally -- and wallet -- friendly.

One woman's garbage is another woman's free beauty product. Lush Cosmetics' 5-Pot Program lets customers exchange five empty product "pots" (made from 100 percent recycled material, of course) for one of the brand's Fresh Face Masks. That way, you can do something that's good for the environment and your skin.

Here's news that will feed our Instagram addiction (as if we needed another excuse to spend more time trolling our feeds): Lancôme's Elite Rewards program credits you with 50 points every time you connect with the brand via social media. You can pick up another 100 by providing your birthday and contact information, as well as another 10 for every dollar you spend with the brand. Translation: It won't take you much time (or money) to earn enough points to claim your free fave Lancôme products, spa services or offers from the brand's VIP partners, which include Gilt and Perrin Paris. We'd say those offers definitely deserve a "like" on any social media channel.

Don't think that high-end brands are above treating the masses to freebies; when you become a YSL Beauty Blackbook member by signing up for the designer brand's emails, you automatically receive a free Volupte Tint-In-Oil lip gloss sample. Plus, you can expect a full-size and personalized product (hey, they still have to live up to their luxury label name somehow) on your birthday, as well as two free samples with every order.

Teadora products may hail from the rainforests of Brazil but you don't need a vacation planned to the country (or some other exotic locale) in order to enjoy the five free, travel-friendly Teodora beauty samples the brand offers on their site. While you will have to pick up the shipping tab (a mere $5), we think the opportunity to pamper yourself with a mix of body butters, cleansers, masks and more beauty goodies makes the minimal delivery cost well worth it.