If you live in Australia you can get some of these Aussie Drawers to install under your deck or porch. The drawers convert normally unused or hard to reach space into efficient storage area. The front of the drawer is easily modified to match deck or house style.
There is a lockable handle to provide secure storage and a PVC membrane above the drawer to allow for watertight storage. With ball bearing glides, it looks like these guys have thought through the most common issues with a product like this. What a great place to store pool supplies, summer toys and tools!