Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to clean without using toxins [title] Use baking soda as a scouring powder. [step] Baking soda is a gentle cleaning product, doesn't scratch surfaces, and is safe enough to brush your teeth with. Use it to clean sinks, countertops, tubs, tile, bathroom floors, or even your grill.

Ending1: [substeps] For extra luck, moisten a kitchen sponge with baking soda. Dip the sponge into the baking soda, then swipe it over the counter. Ending2: [substeps] Pour a bit of baking soda down your drain if it has a sour odor. Turn on the water and flip on the disposal to remove gunk and leave your sink smelling fresh. Ending3: [substeps] Rinse the baking soda off of your skin when you are done. You should also wear gloves when using baking soda to limit the number of germs that get into your mouth. Ending4: [substeps] Some companies also hire people to clean their grill so it can be cleaned more easily. [title] Scrub the dirt and debris off with a toothbrush.

Answer format: ending1/ending2/ending3/ending4