I love to use this bracelet ending because it is very easy to do and makes for a clean finish.
First, start by separating your strings into two groups. Try to make the colors as even as possible.
Next take one of the two groups of strings and twist it to the left and/or counter-clockwise. Do the same with the other group of strings.
Continue twisting them separately to the left while twisting them together to the right. Once you have it to the length of your choice, tie it and cut off the excess. Here is a picture of some of the bracelets I have ended it with.
Thanks for reading!