The Pitzen knot can be tied in seconds once you've "got the hang of it", and is extremely strong.
For greater visibility, I've made this tutorial with 40/100 fluorescent thread.
Here's how to do it:
Step 1
Pass your line through the eye of your lure or staple and back over the main line.

Step 2
Pass the thread back under the main strand.

Step 3
Form a loop and hold it between your thumb and forefinger.

Step 4
Make 5 turns around the first loop down towards your lure.

Step 5
Pass the free strand back through the loop held between your fingers.

Step 6
Moisten the knot with saliva and tighten.

All that's left to do is cut off the excess and your knot is complete.

Advantages of the Pitzen knot
- Solid
- Possible with nylons of different diameters
- Quick and easy to make