[header] How to make camera filters and special effects [title] Buy an inexpensive u.v filter (around $10) and smear vaseline on it to make the subject look " soft ". [step] Sometimes you can make it foggy looking, if you want to add fog in a landscape picture. [title] Also you can remove the uv filter, fog the lens with your breath, and then, before it evaporates, screw the filter back on. 
[title] Use interesting pattern see-through cloths. [step] Take the cloth, put it over the lens, and tie a rubber band around it to keep it in place.