Witzend
PS JulieNoted, I don’t use FB any more but just watched the Russian method of joining yarn on YouTube - genius! Thanks for mentioning in the first place - I didn’t know it was possible to join yarn invisibly like that.
That method is amazing, isn't it? But it's quite time consuming. The method I use, which is one of those recommended in the Facebook group, is so simple - it is just a reef knot (remember those from Girl Guides?), which you pull as tight as possible, then cut the ends off close to the yarn.
You would think that it could easily come undone in use, particularly when washed, but there are many, many people in the group who attest that it works and holds together no matter how much rough handling the blanket gets! And oddly enough, the resulting 'knotty' feel of it is barely noticed because it's crocheted or knitted along with another strand.