There are four us (five if you include the dog) that live in a three-level townhouse and I'm constantly wishing/begging/praying for more space. Short of throwing everything out, what is a woman to do? There things you have must keep, things you want to keep and things that you need every once and a while. Better Homes and Gardens website have fantastic ideas on storage around the house.
Open cubbies both store and organize your laundry room necessities and let you find what you need at a glance. A unit with variable-size openings like this one may need to be custom-built, but storage cubbies with uniform openings are readily available online.