I've had one for two years and nothing works as well. Mine was made from 2 cups of DAWN and 1 cup of rubbing alcohol. I used the good ziplock bags- one inside on another with one zipper side down inside the other with the zip on top. Loosely wrap in a thin dishtowel or into a old pillow case. Mine started leaking after about a year so I just poured it into new bags. Don't use on bare skin without a cover- they are really, really cold.
Grog's index of fishing knots : Move the mouse over each knot. Look at the description to find out what it can be used for. Click on the knot you wish to see. On the new page wait until the selected knot starts to tie itself.