I've done the exact same trick in my mind to remember a sequence -- the "linked list" linking A to B, B to C, etc. It just seemed natural to me, I didn't read it anywhere. If you have the "head pointer", you're probably golden.
When I told a colleague about this years ago, he said that my approach seemed so much more complicated and/or difficult than his approach (IIRC it's called the Memory Palace?) of building a castle/cathedral / museum in your mind, and as you walk through it, you see a banana on the left, and then a monkey a little further down the hall, then a trombone on the right, etc. For me, that technique simply doesn't work, as much as I try.