Wicker storage unit between the washer and dryer. A little light weight for heavy detergent, but a perfect spot for missing socks and dryer sheets. It could also work well for small tools and home maintenance items.
I don't have this exact set up but its a really cool way to add space in the laundry room. Plywood as a laundry room counter top, just rub on some danish oil. (add a cheap rubber floor mat between the wood and metal to dampen the sound)
A Storage Island. To keep large and laundry baskets off the floor. The baskets are used to separate laundry loads. The storage island also doubles as a folding area for clothes coming right out of the dryer.
Laundry Room Makeover & A Renter Friendly Cabinet Makeover