In the Beginning
Unlike embroidery, I've found most of my beading projects have required the use of knots. There are lots of ways to make a knot: there are some good suggestions in this S&S forum thread. I've also heard a square knot is good and clear nail polish is helpful in sealing a knot but have not tried either. A plain double knot works for me.
I have found it helpful to secure the thread with seed stitches (steps 1-4) before beading. This is especially important when using slippery Nymo thread. If you don't wish to use a knot, simply leave a small thread "tail", complete several seed stitches and trim the "tail" away.

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1. Knot thread if desired. |

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2. Bring needle up through fabric. |

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3. Bring needle down a few threads away |

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4. Repeat as desired... |

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...and bead away! |
Finishing Up
I like to finish threads with, what I call for lack of a better term, a "loop knot".

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1. On the wrong side of fabric take a tiny stitch (a few thread is enough) |

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2. Pull the thread until a small loop appears |

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3. Put needle through loop |

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4. Pull thread, creating a small knot |

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Repeat 2-3 times (in the same spot) or as desired. |

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5. Trim threads. If desired run remaining thread back up and through a row of beads before trimming excess away. |
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