If you can't fathom how your husband forgot to empty the dishwasher after asking him a fifth time, perhaps a $99 Learning & Memory DNA test will help. A quick cheek swab can reveal if his genes make him a likely candidate for memory loss, or if he's really just daydreaming about deep-sea fishing.

Qtrait [1] offers customers a pick-and-choose menu of traits and tendencies for which a DNA test will tell you if you're prone to have or do, thereby offering a more reasonable option to existing companies like23andme [2], which offers a complete genetic rundown for $1,000.

In addition to learning if you're a predisposed night owl or early bird [3], Qtrait can screen your genes to evaluate a higher risk of certain fertility [4] and pregnancy issues, such as preeclampsia [5]. Tests for genetic diseases, which many cultural groups like Sephardic and Ashkenazi Jews undergo before marrying or having kids, aren't currently available.