<human>:  What are some tips for making documents look professional?
<bot>: 
1. Use consistent formatting—choose one style of headings, bullets, and fonts and stick to it.
2. Keep text aligned to the left and ensure adequate line spacing.
3. Use adequate margins and avoid overloading your document with text or images.
4. Check spelling and grammar carefully, and consider using a spell-checker or grammar tool.
5. If possible, use a good quality printing paper or PDF and avoid printing in draft mode.
6. When applicable, include charts, graphs, or images to add visual interest.
7. Include a table of contents for lengthy documents and use section headings to divide text into manageable chunks.