I own this exact Copco Acadia Reusable 16oz To-Go Mug (well, not exact- mine has a green band and it cost me more than $4.99.) It has saved me more than I paid for it a few times over. Not only am I more likely to grab a cup of joe at the house instead of from a shop, when I do get coffee at most coffee shops and chains, I get a discount for bringing my own cup. I'm not wasting a ton of paper cups and plastic lids either. This thing lets me be frugal and environmentally conscious - that's a deal for me and future generations, right? I think every hot beverage drinker should own one, especially at just $4.99.