Even if you're not a diehard crocheter, a simple necklace is easy to make. Can you crochet a chain? (And if you can't yet, there are good instructions at Purl Soho.)
1. Assemble your supplies: a small amount of yarn, beads with a hole big enough for your yarn, about 6" of beading wire or tigertail, and a crochet hook.
2. Bend your wire or tigertail in half, and catch about 4-6" of yarn in the bend, just like threading a needle.
3. String on all your beads first, using the doubled wire as a needle. It's better to have too many beads on the yarn than too few, because you can't add more once you've started the chain.
4. Start chaining. When you'd like to place a bead, slide one up your yarn right next to the chain on the hook.
5. Crochet around the bead: with the bead next to the hook, yarn over, and pull through the loop already on the hook. Pull your loop tight, if necessary.
6. Continue chaining and adding beads as it pleases you, then slipstitch your last chain to your first one. Instant glamour!