The names of those three items speak for themselves. The usefulness of a study cart or wheelbarrow is immeasurable when you're moving things around your yard during garden set-up, tear down, or during the season. It's always a great idea to let the equipment do the work instead of you. Likewise with a seeder. With quick and precise seed planting, the amount of labor a seeder can save you will make you wonder why you didn't get one sooner.