Cotton-padded jacket, bought inappropriately, can be made into dolls, small dolls.
If you don't want to return the unsuitable cotton-padded jacket, and the price is not high, you can take out the inner fabric, make the outer fabric into the doll's coat, put the cotton in, sew it with a needle to make it look like you want, and sew it with different fabrics to make it look like you want. You can also find useless buttons at home, make eyes and make them look like dolls' body decoration. You can also choose the size to do it. This process can be completed with children and can improve their hands-on ability.
A skirt that doesn't suit you can be made into a skirt that children can wear.
If you buy a skirt or trousers that are not the right size, you can transform them into clothes for children. Especially girls will especially like the process of making their own skirts. They can make them into any shape they want, add any decoration, or make some clothes suitable for couples for their children and take pictures. It is also a very good choice, and children will definitely like it.
Sweaters that are not suitable for you can be made into small clothes for pets.
Many people keep small pets at home. Sweaters and sweaters that don't fit them can be made into clothes for small pets. The fabric of these clothes is particularly soft and will not irritate the pet's skin. They will be particularly comfortable to wear, so that their pets can also have their own clothes and go out handsomely. Of course other small pets will envy.
There are many ways to deal with clothes that don't suit you. You can do DIY, make many things you like, or donate them to people who need them more.