What is a cheap product that you use everyday and buy very rarely?

I need a cheap product I can buy a lot of and give to people as part of an ad campaign. But it needs to be a product that people see or use everyday and will stay in their house for a while. Also it shouldn't be a product that is highly personalized like shampoo or deodorant. I have one example but would... show more I need a cheap product I can buy a lot of and give to people as part of an ad campaign. But it needs to be a product that people see or use everyday and will stay in their house for a while. Also it shouldn't be a product that is highly personalized like shampoo or deodorant. I have one example but would like more input. Thanks.
Example: a box of table salt
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