Snap Lines on the Sand
You can stretch a string between stakes to create a layout line for setting bricks, but simply snapping a chalk line in the sand is quicker, plus you don't have a string in the way. With layout lines snapped on the sand, laying bricks is faster and easier. The chalk won't stick to dry sand, so you may have to mist the sand with water before snapping lines. Then snap layout lines directly on the sand using a standard carpenter's chalk line reel.
Save Your Back with Dollies
Heavy-duty two-wheel dollies ($40 and up) work great for moving flat stones and piles of brick. Special dollies called ball carts have a curved back to fit the root ball of a tree. These are available at some rental centers (about $24 per day) and are perfect for moving boulders. Get more tips for moving heavy stones here.