Tell HN: Feature idea... mark the last link I clicked

I often click a story, read it, then come back and read the comments. Or, I will read the comments, click back, and then read the story. Either way, it often takes me a couple seconds to find the story I was reading. It gets grayed out like all the other links I have read, and there's nothing to mark that was the one I clicked. So, how about making the last link I clicked orange or something like that? It will save me much time and make the site easier to read.