We have all done it. You spend days browsing Pinterest and saving reels of liquid chrome, intricate tortoiseshell patterns, or deep plum cat-eye velvet sets. Yet, the moment your nail technician asks, "What are we doing today?", you freeze, smile, and default to the exact same sheer pink BIAB, classic red, or clean French tip you’ve worn for the past six months. Why do we stick to our signature nail design on repeat? It turns out our salon choices are driven by psychology, li