If you'd like to upgrade your collection of garden tools but don't have much storage space, check out the sleek new line of Interlocken tools made in Germany by Wolf-Garten. This mix-and-match system gives you the option of using a single aluminum or wood handle with your choice of 28 detachable heads that perform a variety of tasks.

For example, we tried an aluminum handle paired with three heads: a grubber, a hoe, and a rake — a package that retails for about $48. The line also includes edgers and weeders. Made of strong, chromium-galvanized steel, the heads attach to the handle with a snap-and-lock device. The tools are ergonomically designed to reduce back strain.

The handles range in price from $10 for a standard aluminum or wood shaft to $33 for an extra-long telescoping aluminum shaft. The heads run from $8 for a scuffle hoe to $42 for a lawn-edge trimmer.

Look for Interlocken tools at Lowe's and other garden centers. Or order online at www.omygarden.com.