One of the things that will help improve your photography is working on your composition.  When I teach an introduction to photography I cover composition tips and give the students this little print out they can carry around with them to remind them of some of the keys to keep in mind.  I plan to do more in-depth posts on each of these areas starting next month, but for now I hope this little printable will be a good reference for you.

Other Posts on Composition
Simplify Your Subject
Rule of Thirds
Leading Lines & S-Curve
Beware of Mergers
Symmetry & Balance
Cropping
Framing
Change Perspective