Two things often stand out as shortcomings in Do It Yourself "talking head" and how-to videos: Lighting and sound.

Here a are some simple solutions to both problems.

Sound:
Almost all camcorders provide for a wired microphone input. Getting the microphone closer to the sound source (you) eliminates distracting echo and background noise as well as noises that may be generated by the camera. A good choice is the Azden EX-503 clip on found online at TigerDirect or CompUSA: HERE.

Lighting:
Two-Point lighting is the most basic lighting configuration. Position yourself below and slightly forward of a ceiling light to provide back lighting detail and then position a second light source 45 degrees to the left or right and slightly below your eye level to provide face lighting. The "fill" light should be diffused, and not like a spotlight. Remember the basic rules of physics as related to light:  twice the distance equals 1/4 the light power, and conversely half the distance multiplies the light by a factor of 4. A lamp with the shade removed is generally not usable. Be creative but avoid doing things like placing a cloth over a photo light or lamp that could cause a fire. Your local builder's supply may have an inexpensive LED work light. Be sure to remove the metal  shield that can cast shadows. One creative light source is the "flashlight" app for the iPad.

(As featured at ActiveRain.com - HERE-)