Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to clean household cleaning tools [title] Run an empty cycle. [step] Every few weeks add bleach in the soap box or a cup of vinegar and run on the highest temperature. [title] Clean dishwasher once a week.

Ending1: [step] Dish detergent and the cleaning solution the dishwasher has (sodium bicarbonate) will keep stains from becoming stubborn. [substeps] Give your dishwasher the customary cleaning treatments after every use to keep it cleaner, and check the status of your dish detergent every time you clean. Ending2: [step] Whenever you come back to the washer and dryer, clean it once a week with white vinegar. Then scrub with a soft scrub rag or depress the scrubbing keys with the top half of the key bar in your dishwasher to make it easier to wash the dishes. Ending3: [step] This keeps the soapy scrub from soaking into the bristles. After this remove your tools once a week, and rinse thoroughly. Ending4: [step] Clean your dishwasher by leaving it open to cool after you run it about once per week. That way all the steam can escape and it won't build up on the racks in your dishwasher.

Answer format: ending1/ending2/ending3/ending4