“Jackpot,” a girl said, grabbing a book that had been discarded by another shopper.

Welcome to National Book Store’s Great Warehouse Sale—which, this time, is actually happening at National Book Store’s warehouse at Quad Alpha Building along Pioneer Street—where good finds are plenty and discounts are crazy.

They promised up to 80 percent off items but we actually found items at 90 percent off.

Books aren’t the only thing you’ll find at the Warehouse Sale—there are school, office and art supplies, toys, stationery, home decor, party essentials and lifestyle pieces at really low prices.

Here are some Super tips to help you make the most out of the sale.

1. Wear comfortable clothes and shoes. Light and breezy fabrics will keep you cool and comfy footwear will help you navigate the sale floor with ease.

2. Go on a full stomach. Don’t make our mistake. Make sure you’ve eaten so you’ll have plenty of energy to spot great finds. If you left the house without having a meal, don’t worry. National Book Store has its Books and Beans Café on the ground floor of Quad Alpha Building, there’s a Shakey’s across the street and a McDonald’s just a few steps away.

3. Stay hydrated. Bring water. You will need it as it tends to get hot especially with the crowd in the afternoon. Drinks and snacks are available at the sale entrance too but purchase them as you go in because once you’re deep in the sale, “swimming” back to where they are could get ugly.

4. Leave the children at home. The sale gets crowded, really crowded, and you will not have the time and the energy to take care of a little person while trying to grab an activity book from the P50 pile.

5. Go with a companion, if you can. That way you can cover more areas, look for more titles, and you also have someone to help you carry all your purchases.

6. The minute you see something you like, grab it. Items disappear super fast. Hesitate for five minutes and it could be gone.

7. Check the sorting area. There could be titles that you like and that others have spotted, picked up but decided to let go last minute. Just make sure that they are truly discarded books by asking the person nearest them.

8. Don’t be shy, ask the other shoppers where they got a particular find. We found the other book lovers very helpful.

9. Bring wet wipes and/or alcohol. Your hands will get dusty so you’ll need them. If you forget, National Book Store sells wipes at the counter.

10. Bring a suitcase or two. You can use it as your cart while you shop or to carry the books out of the warehouse and into the parking lot or to your Grab ride. The staff of NBS staff are also ready to assist you with your purchases.

The Warehouse Sale runs until today at Quad Alpha Building 125 Pioneer St., Mandaluyong City. Missing the sale? Don’t worry. National Book Store is bringing the great deals to all their branches with the National Book Store Super Summer Sale which runs until April 14. Start stocking up on your summer reads. You’ll get up to 80-percent off when you buy books, school and office supplies and more.

There are big discounts, too, on premium stationery and imported brands like Kate Spade New York and Leuchtturm1917.