Ballpoint pens are widely used for various purposes, including:

1. Writing: The most common use, ballpoint pens are great for everyday writing, notes, and correspondence.

2. Drawing and Art: Many artists use ballpoint pens for detailed work, illustrations, and sketching.

3. Signing Documents: Ballpoint pens are often used for signing important documents, contracts, and agreements.

4. Journaling and Note-taking: Students, writers, and professionals use ballpoint pens for journaling, note-taking, and research.

5. Office Work: Ballpoint pens are a staple in offices, used for various tasks, like filling out forms and labeling documents.

6. Creative Writing and Poetry: Many writers prefer ballpoint pens for their creative work, as they allow for smooth, fluid writing.

7. Doodling and Zentangle: Ballpoint pens are great for doodling, Zentangle art, and other forms of meditative drawing.

8. Labeling and Organization: Ballpoint pens are used for labeling files, folders, and other items for organization and storage.

9. Gift Tagging and Card Writing: Ballpoint pens are perfect for writing gift tags, cards, and other personal messages.

10. Everyday Carry: Many people carry a ballpoint pen with them daily, as it's a versatile and essential tool.