Do you collect stuff? Is it difficult to show your collection, or is it in a cupboard, or closet/ here is an interesting idea. Take pictures of individual items in your collection and put them together in a digital photograph, then put it in a frame and show it off for the world to see. Take a picture of each with a different background color that matches your decor to add some visual interest.
Think about all those cool mugs you have, or dolls, or other collections that are just too large to display. How about pictures of each of the houses you have lived in or all the cars you owned. Don't forget to think of that sentimental clutter you have in your closet. Take it out, take a picture, then dispose of the items and frame the montage, so you can enjoy the memories every day.