Absolutely, I can help with that! Bookworm or not, everyone loves a good deal. Find your next great read without breaking your wallet with these options:

1. **ThriftBooks**: This online retailer sells used books at low prices, with genres ranging from children's books to travel guides.

2. **Better World Books**: This site offers used books and a great selection of bargain bin picks. Every purchase also supports literacy initiatives worldwide.

3. **Book Outlet**: Book Outlet sells overstocked bargain books. The selection changes frequently, so there's always something new. Books are brand new, and the prices are super low.

4. **AbeBooks**: This site specializes in used, rare, and out-of-print books, but they also sell new titles at substantial discounts. 

5. **Powell's Books**: The website of the world-famous bookstore in Portland, Oregon, offers discounted new and used books.

6. **Amazon**: Don't forget about Amazon, which hosts a plethora of new and used books often heavily discounted. Check out their "Today's Deals" section for extra bargains.

As for physical locations:

1. **Public Libraries**: Libraries occasionally sell used books to make room for new ones, and prices are generally very low.

2. **Thrift Stores**: Check out your local thrift and secondhand stores. These places often have books at significantly reduced prices.

3. **Garage Sales/Yard Sales**: These can be treasure troves for inexpensive books!

4. **Book Swaps**: You might have a friend who's also a book lover. Suggest a book swap. This way, both of you get a new book, free of cost!

Don't forget about eBooks and online resources:

1. **Project Gutenberg** offers over 60,000 free ebooks.

2. **Open Library** allows you to borrow an eBook for free.

3. **Librivox** offers free audiobooks read by volunteers.

4. **Your Local Library's eBorrowing** systems like OverDrive, Libby and Hoopla.

Happy reading!

Sure, here are some additional websites where you can purchase used books at affordable prices:

1. **Alibris**: Specializes in rare and out-of-print books, and has a great selection of used books as well.

2. **Bookfinder**: This is a great search site that sources from over 100,000 booksellers worldwide to find you the best deal on any book you're looking for.

3. **Biblio**: They offer over 100 million used, rare, and out-of-print books from a variety of independent sellers.

4. **BookMooch**: This is actually a book exchange that uses a point system. You earn points by giving away books and you can get books in return.

5. **Half Price Books**: This online bookstore offers new and used books, textbooks, music, movies, and more at super low prices.

6. **BookScouter**: If you're looking to compare prices, BookScouter lets you type in a book's ISBN and get prices from over thirty different buying sites so you can ensure you're getting the best deal.

7. **eCampus.com**: While primarily aimed at college students for textbooks, this website also offers a good selection of used books in other categories.

8. **Second Sale**: Offers a large selection of used books. They also buy used books directly from customers.

Remember to always check on shipping costs since they can increase total book costs significantly on these sites, and happy hunting for your next great read!