Parallel parking requires the ability to "eyeball" the size of a parking space relative to the size you remember (or imagine) your car to be. And as anyone who remembers their first driver's ed test knows, that's easier said than done. Likewise, planning a baby's room requires a steady hand and some guesstimation: "How big will the crib be when it arrives? Do we have room for a changing table?" Baby Spaces templates are a great way to map out a baby's room before he or she arrives: You only have to move around a custom-cut piece of paper, rather than a big honkin' crib. They're especially helpful for parents-to-be with smaller homes — figure out exactly what you have space for before you go furniture shopping, and your hardest decision will be "cowgirl, or princess?" $19.99 at DesignYourselfInteriors.com.