last year a fellow knitter showed me a way of weaving in ends I hadn't come across before and haven't come across since. I don't know what it's called but it's relatively quick and easy so I like it a lot. I don't have a way of making a video but I took some photos to illustrate. hopefully this will make sense!
when done in the same color yarn, this method is almost invisible on both the knit and the purl sides. it works best with a tightly-knitted gauge and a grippy yarn.
the basic idea is that you wrap the yarn end around one side of a column of stockinette Vs. stick the needle from right to left around the right leg of each V and work your way up for a couple of inches, then turn, move the end to another column, and repeat in the opposite direction.
this can also be done on the purl side, but while it is invisible on the knit side, it does show up on the purl side. instead of going up a column of stitches, you work from side to side, catching the purl bumps from right to left.
here are some pictures of how this is done on the knit side of stockinette.
bring the end to be woven up through the middle of the V of a knit stitch.
stick the needle under the right leg of the stitch above, working from right to left.
bring the needle tip around to do the same to the next stitch above.
continue wrapping the stitches for a couple of inches.
pull yarn through and then give the fabric a tug to smooth it out.
like so. bring the yarn up through a stitch in the next column and repeat in the opposite direction.
when you're using the same color yarn the result is fairly invisible on the knit side and the purl side, but if you're using a contrasting color yarn, it's not invisible on the knit side but it is on the purl side.
here's how it would look with a contrasting color.
yeah, not so good.
so work it on the purl side. here's how.
bring the end to the purl side.
stick the needle through a purl bump from right to left. I see the bumps like parentheses. some look like ( and others look like ). you can weave in the yarn on either type of bumps, but stick with the same type for each row.
I picked the ) bump for this row.
aim for the next purl bump of the same sort.
keep going for a couple inches.
pull the yarn through and tug at the fabric to smooth it out.
turn and work in the opposite direction on another row of purl bumps. I like to change directions at least twice.
this is how it looks in a contrasting color. not invisible at all but it doesn't show up on the knit side. and if the knit side is the right side, then that's all that matters.
so that's one method of weaving in yarn ends. if anybody uses it and likes it or knows what it's called, let me know!