I have been working from home for several years now, and I will tell you what nobody told me at the start: the physical cost of a badly set-up workspace accumulates quietly. So this is my version of The Complete Guide to Creating Your Perfect Work-From-Home Setup. It does not announce itself on day one. It starts as mild tension in the neck by 3pm. Then a recurring ache in the lower back that you assume is just tiredness. Then you realise you are shifting positions every twenty minutes because nothing feels quite right, and your ability to focus is taking the hit alongside your posture. I am not someone…