Just a hint, for those of you with artificial trees that aren't prelit...
There is no special lighting technique for those pre lit trees, I work in a christmas store year round, and we do the lighting too. When you put up your tree, just string your lights per section, if your tree has three sections, wire each section individually. Instead of going around and around with the lights, start at the trunk of the tree, and go out and back on each limb, wrapping tightly around the limb with the light string. It is simple, but time consuming the first time. After you wire it, you have a pre lit tree.
When you get ready to store the tree, just take it apart, and leave those lights on it.
Buy the lights you like, and use what you already have.........