I had a quick look, and there appear to be lots of threads on specific thyroid issue, nothing general though. Maybe the mods will move this to health when they notice it.
The Thyroid UK community pages are fantastic though, very knowledgeable.
The main thing I do unfailingly now is swallow my thyroxine with a full glass of (non tap) water with an effervescent vit c tablet in it, vitamin c is supposed to help with absorption. Then I wait at least an hour before eating. Apparently the best thing to do is take your meds on an empty stomach before bed, but I don't have the self-discipline. My GP said it would give me troubled sleep, but the few times I tried it I felt fine. Something to consider?
Plus if you take more than one tablet there is a theory that you will feel better by splitting the dose, so maybe one tablet before bed, one on getting up.