What are the fun and practical USES of the ordinary rubber band? Here are all of them:

Keep food fresh - Seal a bag of chips, salad strips, or bread flour with a rubber band to keep it fresh.

Act as a reminder - Tie a rubber band to a special page of a document (you can also tie it to the cover to avoid wrinkles) or an elastic band is worn around your wrist to remind you to do something.

Rubber pad - Put a pair of rubber bands on the TV remote control or ashtray to avoid slipping or scratching the table.

Keep things together - like pencils or tape are index CARDS. This is obvious.

Bookmark - Wrap a rubber band around the front cover and the middle of the page you just read. The next time you open a book, the first page that isn't wrapped in a rubber band is the one you finished reading last time.

hair cord - maybe you can use it for a ponytail.

bundles of paper or poster - Roll up the paper or poster and wrap it with a rubber band for good storage.

Seat belt for the eye - Cut the rubber band open and tie two of them to the two eyeglass legs attached to the ear. If the rubber band is short enough, you can keep the glasses on your face.