I usually tie what I think is a trilene knot and it holds well. Through the eye twice leaving a loop, around the line 4 times and then through both loops that are now left. Wet it and tighten, I've caught quite a few fish this way and I typically fish 6 or 8 lb. test. I test my knots pretty good before using them though and once in a while I have to tie this one 2 or 3 times being the only drawback.

Dave