I know there are a number of ways to deal with the tangling yarn issue, but I thought I would throw my choice into the mix.
I use 2×2 ribbed cuffs to keep the yarn stable and to minimize any unraveling from the outside of a center-pull skein. I have skein cuffs in various lengths and gauges to accommodate a variety of sizes. If you make two matching skein cuffs you can use them as wristers (wrist-warmers), too (or vice versa!)
