Here’s what you need to know about using Costco to book your next vacation

Did you know that in addition to being able to shop in bulk for peanut butter and toilet paper, your Costco membership also grants you access to a travel agency?

It’s true. Costco has an extensive travel program for its members, focusing heavily on packaged hotels, cruises and rental cars. And before you say that those types of vacations are not for you, consider that they can offer a really good value.

“It’s a big world out there, and if travelers can’t find the time to plan their perfect trip, packaged tours or vacations are a great way to ensure you hit all the highlights,” Alex Howard, lead editor of Lonely Planet’s homepage and interests, tells CNBC Make It.

In fact, if you’re on a budget, Costco offers a rotating selection of “$499 and under” deals, where you can get an entire vacation for under $500 per person. Right now, Costco is offering a four-night cruise to the western Caribbean aboard the Norwegian Pearl in an ocean-view stateroom for $449 per person.

But before you hit the “book now” button, here are eight things you need to know about planning your next trip through Costco Travel.