Two Strand Twists

I'm thinking about doing some two stranded twists on my hair maybe over the next few weeks. My problem with doing twists is they always unravel and I end up having to re-twist over and over again. I'm going to try it again though. I personally like to do my twists on either dry or semi-dry hair so that they hang nicely. Whenever in the past that I have done twists on shampooed hair, I always ended up with shrunken twists that tend to knot up when I try to remove them. With twists you need a good base on your hair like a twisting type cream etc. The one I have I think is by ORS. It smells good and has coconut milk in it. I'll post a picture of my twists when I do them. (Any helpful hints on doing twists would be appreciated. Either e-mail hints or put in comments section)