Please be careful about what you put down your garbage disposal. Items which should not be put in the disposal include: metal, glass, plastic, grease, paper, cigarettes, bones, banana peels, oyster or clam shells, tea bags (metal staple), dish rags, celery, corn husks, potato peels, etc. If you can't chew it, neither can your disposal!!
Helpful hint: To sharpen the blades on your disposal, occasionally fill it with ice cubes and run.