Reading this thread has made me very curious about these products. I'm considering trying them. Does anyone use them who has an extremely light flow? For many years I only had 3-4 periods a year, finally got it checked out and my doc diagnosed PCOS. I was put on BC to regulate my cycles but sometimes I wonder why I take it, b/c I know i'd be flow-free w/out it. I often leave tampons in longer than recommended b/c I'm so lite. Is it worth checking these products out? How long can it be left with out needing to be washed?