A common pregnancy complaint is itchy, superdry skin on the growing tummy -- after experiencing the bump itch in both of my pregnancies; my tip is to avoid the scratching the delicately stretching skin and moisturize, moisturize, moisturize.
These are two of my favorites.
1) Mustela's 9 Month Maternity Stretch Marks Double Action.
This lightly scented, super-rich cream massages into the skin beautifully to put a stop to the dry dump for hours. Purchase locally at Dawn Price Baby - Eastern Market and online at http://www.mustelausa.com/stretch_marks_double_action.html
2) MamaMio's Tummy Rub Stretch Mark Oil - CM2B Fave!
A mildly citrus scented oil that was (and still is - I use it regularly still 3 months after Sollie's birth) a pleasure to use. My skin has a nice, not greasy, moisturized feel, a subtle sheen and even better no stretch marks.
Order at www.mamamio.com (free preggie pops with most orders for a limited time)