Here's a simple invention designed to save landscapers and lawncare businesses money:

Those pieces of welded steel tubing were developed by Long-Island-based D'ttach. It's simply a hitch receiver supported by a telescopic bar that can be attached to the front arms of any zero-turn, whether sit-down or stand-on. This allows the user to attach a number of D'ttach accessories to the front of the machine, instantly transforming what was only a grass-cutting machine into something with far more utility. Commercial zero-turns are expensive, often running into five figures, and the D'ttach add-ons save the operators the expense of needing to haul a second dedicated machine to the jobsite.

The company makes a dethatcher:

An aerator:

A barrel carrier:

A jack, for changing the blades and cleaning the deck underside:

A leaf plow:

And even a snowplow:

The latter two attachments are particularly clever, allowing the operator to generate income during autumn and winter months, when there's no grass to be cut.