Invisigrip, Angler 2, Clover Mini Iron (prefer the Clover Mini Iron II), Martelli Kwik Bind System. I wanted them thinking oh that would be great but they now all sit there never to be used again.
I don't purchase anything anymore unless I really need it more often than not, and it has to work easily for me. I find that I can create other ways myself to do things if I can't find out how online from this board or other tutorials.