Have a large bag, bin, or basket somewhere readily accessible in your home at all times. Maintaining a beautifully ordered and decluttered home is a long-term project, so make sure that you have a dedicated container in which to put items you no longer want.
By throwing as you go, you can keep on top of unwanted (but still usable) items filling up your house. Whenever the container becomes full, simply drop the items off at your local thrift store.
Personally, I use an extra-large cotton woven basket with handles that I keep in the closet of my home office. Other great places to keep your donate bin so that it’s easily accessible for the whole family are tucked in the corner of a kitchen, living, or bedrooms.