There are a lot of commercially-made cleaning products out there, and it likely hasn’t escaped anyone’s notice that many of these products are toxic in one way or another. They can hamper breathing, cause contact dermatitis, or present other poisoning hazards.
Spring and summer are often the best times for cleaning house. You can open the windows and allow fresh air to circulate through your house or flat. Plus, you can take down your curtains and give them a good cleaning. Hanging them out on a clothesline, if you can, helps make your curtains smell truly wonderful.