Question: How to clean a bicycle helmet?
Options:
Pour a few drops of dishwashing liquid in a bowl, add water, and dip sponge into it. Clean it thoroughly with sponge. Make sure helmet has soap everywhere then leave to air dry.
Pour a few drops of dishwashing liquid in a bowl, add water, and dip sponge into it. Clean it thoroughly with sponge, then clean with cloth,  and leave to air dry.
Answer: Pour a few drops of dishwashing liquid in a bowl, add water, and dip sponge into it. Clean it thoroughly with sponge, then clean with cloth,  and leave to air dry.