1. Sell your clothes and accessories.
You know all those clothes taking up room in your closet that are perfectly nice but you never wear them? Sell them. Find a website that can sell things for you or open an Instagram account and sell your pre-loved items there.
2. Sell your other stuff you're not using too.
Your old iPhone 4 you've been keeping in your desk? Try OLX.ph. The food processor you got last Christmas that you've never used? Sell it. All those books you're never going to read again? Find a used bookstore.
3. Study credit card offers and pick one that has rewards that you'd actually take advantage of.
For example, if you fly a lot, especially on a particular airline, get a card that gives you miles. If you shop at a lot, get one that gives cash back on certain purchases. Just be sure to pay attention to two things: the interest rate and the annual fee. Interest rates on these cards can be high, so only sign up for one if you can pay it off in full every month. And an annual fee of P4,500 on an airline card isn't worth it if you're not going to earn and use a free flight every year.
4. If you have a rewards card that you're paying off, offer to pay for stuff.
Taking a vacation with your best friend? Book both your flights and have her pay you. Going out to dinner for someone's birthday? Put the whole bill on your card and have everyone pay you cash. This way you'll earn more rewards than you could on your own, without spending extra cash.
5. Sign up for focus groups.
This is literally sitting in a room instead of your house talking about stuff you like and don't like (and sometimes on the phone from your house!). Make a profile with a marketing company, and they'll reach out to you every time they have a focus group that fits your interests. Bonus: Some of them pay in cash, and nearly all right on the spot.
This article originally appeared on Cosmopolitan.com. Minor edits have been made by the Cosmo.ph editors.