Follow these steps to clean gutter:
Wear a shirt with long sleeves. Wear rubber gloves.
Have a good extendable ladder available. Standoff stabilizers (ladder “horns”) are ideal to keep the ladder from damaging the gutter.
Use a small plastic scoop to remove gunk. Buy a gutter scoop from the hardware store ($25) or try a child’s sand shovel.
Spare your lawn by dumping the stuff onto a plastic tarp.
After you’ve cleared the muck, flush the gutters and downspouts with a garden hose — also a great way to spot any leaks.