Yes, you can put used dryer sheets in a trash bag for disposal. Dryer sheets are typically made from thin, non-toxic fabric that is safe to throw away with your regular household waste. When you finish using a dryer sheet in your laundry, simply gather it with other household trash and dispose of it in a trash bag or waste bin.
If you're concerned about environmental impact, you can also look into eco-friendly dryer sheets made from natural materials and biodegradable substances. Additionally, consider reusing dryer sheets for other purposes before discarding them, such as dusting or deodorizing shoes. Reusing them can help reduce waste and make them more environmentally friendly.