Word, Excel, Powerpoint

Word:
Work on typing stories/research papers
Learn the tools of word, such as spell check, formats, and font size
Posters
Brochures
Letters

create resumes

Excel:
Budget sheets
Financial reports
Organize specific information
Math related-charts, tables, etc.

PowerPoint:
Presentations
Notes
Larger posters than 11x17
Handouts

One project I created using Microsoft word was typing out a research paper.  In excel you can create budget sheets that keep track of your finances.  In PowerPoint I once created a timeline that made it easy to print out because instead of 11x17 paper it printed out in length of up to 4 feet long.  Microsoft Word has made it easier for teachers to create a number of projects, so that it helps students to become engaged in the activity.