thermal expantion
Wash them.
Soap?
you can put dirty clothes in a wash bag
No. But it is unhealthy to wear dirty clothes always wash your clothes and stay clean.
Yes, liquid body soap can stain wash clothes if it is not fully rinsed out during the washing process. The ingredients in the soap can leave residue on the fabric, causing stains. It's important to follow the care instructions on the soap bottle and to ensure thorough rinsing when washing clothes that have come in contact with body soap.
You put the clothes in the wash machine with laundry detergent/soap and then put the clothes in the dryer with a dryer sheet.
Wash in a machine as with most clothing on a suitable cycle.
no just when they are dirty
To remove dried soap stains from clothes, moisten the area with water and then gently rub a liquid detergent or stain remover onto the stain. Let it sit for a few minutes before laundering the clothes as usual. Avoid using hot water, as it can set the stain further.
to wash your hands and clean your body in the shower!!!
wash immediately with soap and water
You can, but you need another ingredient. You cant just wash it with water and it'll be clean! You need soap. Scrub soap on the shirt and then rinse it in water. Your clothes will be clean. I GUARANTEE IT!!!!