make them difficult to separate afterward and may contribute to wrinkles.
After getting frustrated with tangled laundry, I decided to try a surprisingly simple trick: placing an empty plastic bottle in the drum before starting the wash.
How the Plastic Bottle Hack Works
The method is simple. Some people use an empty plastic water or soft-drink bottle with the cap securely closed.
As the drum rotates, the bottle moves among the clothes. In theory, its smooth surface may help create additional movement between garments and reduce some tangling or clumping.