Others are screwtips in flat, square, torx, and, of course, the Phillips versions. There's also nut drivers, which speed up any monotonous assembly job. Battery drills will run you a little more depending on the size of the battery. The second most useful tool is a Sawzall. I've used it to demolish walls, cut iron railing and trim small limbs from trees.
Blades are available to rip wood, metal and ceramic.
Narrow blades will follow curves of a pattern and heavy coarse blades will cut through a roof for a skylight. When shopping for a Sawzall, check the weight and try to run the unit to feel for vibration. Since the blade is an integral part of the machine's performance, be sure to use a high-quality one. Blades can break easily in this powerful saw and safety is a concern. Shattered blades are dangerous so buy a machine that allows you to change the blade easily.