Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to add vinegar to laundry [title] Keep your clothes clean with vinegar. [step] Pour 1/2 cup of distilled white vinegar into your washing machine, instead of the detergent you would normally use. This will clean your clothes without the use of the harsh chemicals found in many commercial laundry detergents.

Ending1: [title] Use vinegar as a fabric softener. [step] Get 1 cup of white distilled vinegar ready. Ending2: According to the manufacturers, the higher the quality of vinegar, the better your laundry needs to be. [substeps] Be aware that this is an acidic detergent. Ending3: [substeps] Make sure that you add enough vinegar to keep your clothes clean. If your clothes are made from fabrics, there shouldn't be much detergent in your washing machine. Ending4: Combine it with the detergent you use for your laundry and place it in the washer. [substeps] Vinegar often comes in bottles, but these only provide a small amount of vinegar to brighten your clothes.

Answer format: ending1/ending2/ending3/ending4