how to sew neckband without BO

[candy]

Years ago when I knit I did a technique to sew a neckband down instead of binding off but I can not remember how. I have my neckband on a circular needle and did one row purl and one row knit then did K1,P2 for 8cm. What I do remember is knitting the last two rows on a larger needle and just knitting them not ribbing. Then I left the stitches on the needle and turned it inside out and rolled the collar down and then somehow I did a knit or a purl on the stitch on the needle and then knit or purled the stitch below. But I can't remember knit or purl when or which one. Do any of you do this technique? Also, should I attach it to just the ribbing or to the two rows of garter stitch I did first. Somehow I think that this technique works when sewing it to the ribbing. I guess I should not have quit knitting years ago and then I would not be having this problem of remembering everything.