Here's a very simple but effective Instructable.
Sunlight is one of the most powerful (and cheapest) light sources for macro photograpy. However, if the light is bright, shadows will mostly ruin the picture.
This Instructable will show you how to use an old translucent IKEA lamp as a light tent AND
camera support at the same time (I can't remember if the lamp is a Bjorn, a Benny, a Frida or Agnetha).
Similar ideas have been presented in the past by Light_Lab
although this hack requires no skills whatsoever and it will allow you to use the light tent as a camera support (for low shutter speeds).