Reuse this cup.

The day starts off so great.

There you are, striding through your morning with your reusable travel mug full of home-brewed coffee which terrible financial articles insist will save you enough money each day compared to Starbucks that you’ll be able to retire twenty years early.

Oh and the turtles. As you glance left and right you see your fellow coffee drinkers with their disposable cups and—in some particularly horrific cases—disposable straws. Why don’t they just stomp a sea turtle to death in the street while they’re at it? A bunch of planet-hating monsters who spend too much on coffee is what they are.

This feeling of obnoxious superiority lasts for approximately as long as that morning cup of coffee does, because as soon as it’s gone, you’re hit with a bleak reality: now you have an empty cup to carry around with you. So like a kid with a lunchbox at the end of the school day, you head home, watching with envy at colleagues and strangers get to toss their own cups in the bin and go about their day unencumbered.

What’s a sea turtle done for us lately, anyway? And a few bucks a day can’t add up to that much.

No. Stop it. Don’t give in.

Keep making your coffee at home. It’s better than a 401(k). And keep on keeping your daily coffee trash out of the landfill.

You can do this. You just need a better cup. Or two.

This one comes with its own turtle-saving straw and, best of all, collapses neatly into a tidy little stack small enough to fit in your pocket or ride home in your bag with ease.

Plus you get two of them, which solves the other great frustration of travel cup life, which is having it be dirty when you need it.

So start your two-cup rotation. Look cool. Save money. Free up your hands for the trip home.

The turtles will thank you. (And you’ll thank us.)