Even if you don't want to do lots of do-it-yourself projects or home repair, every woman (and man too) should have this one power tool. What is it? A power drill. And not the cheap Black and Decker models that hardly have enough power to drill through a tissue, but a real (wo)man's drill. Why is this one tool so important? Have you ever tried to hang curtains and not been able to screw in the screws to hold up the rods and hardware? Have you then asked your husband, father, significant other to do it, only to have him curse, yell, sweat and rage as he is overcome by a tiny screw? A power drill lets you hang any picture, put up any drapery hardware, and do about any other project you need to do.
Here's my favorite model that I have used and found very handy. This is my Makita.
After reading the reviews, you may want to check out this Panasonic. Sounds sweet.
The other tool you should have is a lightweight hammer. Not the big full-size one that most guys use, but a small one. With this you can hammer a small nail without hitting your thumb. My husband has a politically incorrect name for it, but I call it a "lady's" hammer.