How do you get yellow stains out of pillows?
How to Wash and Whiten Yellowed Pillows –
How long do you leave baking soda?
Baking soda is good indefinitely past its best by date, although it can lose potency over time. You can use a rule of thumb—two years for an unopened package and six months for an opened package.
What is the best way to wash a pillow?
How to Wash Pillows –
How do you get sweat stains out of pillowcases?
How To Whiten Old Pillow Cases –