Once in a while we pull up a path, or dig a hole and pull out some rocks, or maybe you have some old bricks lying around or even some river pebbles left over from that old boulder garden. What you're left with is hard fill, expensive to dump as well as to buy. Obviously if you're preparing a patio or driveway this material is invaluable as clean fill. But if you don't have a use for it right away, you don't want it hanging around on the driveway for six months while you get your act together.
So I've come up with a solution which anybody can do and which makes a useful versatile object you can use in many parts of the garden.
Gabions or wire baskets filled with concrete can be used as a border or raised edge, to flatten out sloping paths or as a step under pavers. Gabions will not last as steps on their own as the wire will wear out and the basket will burst, so they need to be covered with timber, stone or pavers. In fact you can make a whole new raised garden from something that was previously annoying rubbish.
Once the gabions are installed then filled they're quite solid so they can be stacked like bricks.
To build a larger weight-bearing wall requires some engineering, but small garden projects can be achieved easily. Nothing better than turning an expensive waste problem into a tidy solution.