Use one

Place expired tea leaves in an open small container and put it in the refrigerator to absorb various odors; if your hands have odors, you can also rub expired tea leaves on them for the same deodorizing effect.
Use two

Expired tea water can remove scale from thermos bottles and other containers. If brightly colored clothes have faded, rinsing them with expired tea juice can restore their original color. Chewing a little dry tea leaves can eliminate the spiciness of chili peppers.
Use three

Kitchen garbage, if thrown directly into the bin, often leaks moisture and produces bad odors. If you first discard kitchen waste in the filter net of a vegetable scrap holder and cover it with a layer of expired tea leaves, leaving it overnight to dehydrate, and then throw it into the bin, the kitchen waste will no longer emit foul odors. If your hands have a fishy smell, you can also rub tea leaves on them for the same deodorizing effect.
Use four (Here's the highlight!!)

Washing hair with very strong expired black tea can turn hair brown or black; this utilizes part of the hair-nourishing effects retained in black tea's efficacy. If very strong clove tea is used to wash hair, it can turn hair red, and it is non-toxic; even if you don't want to dye your hair, rinsing with waste tea water after washing can remove grease and dirt, leaving hair black, soft, and shiny.
Use five

For new wooden furniture, such as tables, chairs, and cabinets, which have a pungent paint smell, washing them thoroughly with tea water will naturally reduce the paint odor. Washing multiple times will make it disappear, which is much better than using soap or other detergents.
Use six

Tea contains a large amount of tannic acid, which has a strong bactericidal effect, particularly effective against fungi that cause athlete's foot. Therefore, people with athlete's foot can boil tea into a strong solution to wash their feet every night, and over time, it will cure the condition without medicine. However, washing feet with tea requires persistence; significant results will not appear in a short time. And it is best to use green tea, as fermented black tea contains much less tannic acid.