carbon monoxide is colorless, odorless gas. because the gas can kill within minutes, it's important to recognize the early symptoms of overexposure. they include, headache, d dizziness, and nausea. >>> the holiday shopping season will wrap up with plenty of returns. but some of the unwanted gifts could end up costing the person who receives them. you could get stubck with a restocking fee. >> reporter: no one wants to be slapped with a restocking fee. >> it's not good for us or the customer. >> reporter: best buy and retail customers pass those costs on to the consumer. >> the biggest reason is that it needs to be checked out. >> reporter: can you then take it to the back and tape it up as new? >> absolutely not. it has to be checked out by the certified technician about a geek squad and that it's in good working condition and resell it as an open box item. >> reporter: 10 to is 15 pors of the costs of the products. camcorders, laptops, phones and it ads up. if you bought a computer for $1,000, opened it, and returned it, you wi

carbon monoxide is a colorless, odorless gas that when breathed in replaces oxygen in the blood streamexperts say because the gas can kill wind minutes it's important toing recognize the early symptoms of exposure. those include headache, dizziness, nausea. >>> the holiday season is sometimes referred to as the most wasteful time of the year. but these days there are plenty of options to help reduce waste. gary shows us how one county in washington is educating holiday shoppers. >> reporter: king county consumer tom watson knows he can help you reduce waste and save money. he knows he needs creative marketing to get your attention. >> we're going to launch this. >> reporter: a fruitcake catapult. now we're talking. >> two, one! >> reporter: launching a fruitcake into the compost bin is a fun way of encouraging easy waste-saving ideas. watson has plenty more where that came from. >> this is the inside of a chip bag. look at that. you rinse it out and use it . this is an old vhs tape. it looks like a professional gift wrap job. this is a hanukkah menorah made from salvaged material. recy