You might still have lots of stuff that you just can't get rid of, but there are lots of storage options that people often overlook. These might include:
The Space Between your Kitchen Counter and the Cupboards:
Architect Donald Chong demonstrates in his kitchen design in the illustration. You can also just install towel bars or cup hooks.
Under the bed
This storage real estate where the dust bunnies roam is underused much of the time. Container stores sell special shallow and long bins for this purpose.
Read the next page "Get Smaller Stuff: Technology just keeps making things smaller."