Originally Posted by pescaphile
Use a knot. You probably know the clinch knot. It works well for many applications. I like it for most trout fishing. I also use the turle and palomar knot also.
There's no need for swivels in flyfishing.
The Improved Clinch is the way to go, especially with fine tippet. The extra little turn back through your loop makes a BIG difference in holding the knot.
There's actually one use for swivels in flyfishing that I know of.
I have these little tiny spinner flies that you use tiny little swivels with so your line doesn't twist. It becomes an unholy mess if you don't.