Happy T-Shirt Tuesday!

Erin McCarthy

Every week on the day after Monday, we're releasing new shirt designs in the mental_floss store. Today, it's Q Loves U (above). Put these quirky letters together and you have a quick, quality couple that never quarrels. And you can quote us on that!

And that's not all! Today only, buy any three t-shirts in the mental_floss store and get one free! Just use the code TEE3 at checkout. (Offer ends at midnight PST.)

Did you know that you can submit t-shirt slogans? Lorena T. from Houston, Texas, came up with today's t-shirt idea. She gets $125, a free shirt, and eternal "I designed a mental_floss t-shirt!" bragging rights. If you have a funny t-shirt slogan, you can submit it here