I Track My LLM Spending Like I Track My Calories — Here's Why Both Habits Stick

There's a weird parallel between two habits I picked up over the past year: tracking my LLM token usage and tracking what I eat. On the surface they have nothing in common. But the psychology behind why both habits actually stick — and why most people fail at both — is identical. The Invisible Bleed Here's the thing about both API costs and calories: they're invisible by default. You don't feel a $0.03 API call. You don't feel 200 calories from a handful of trail mix. Both accumulate silently until you get the bill — either from your credit card or your bathroom scale. I started paying attention to my LLM costs after a month where I burned through $140 on API calls without noticing. I wasn't doing anything wild — just iterating on prompts, testing different models, running agents. Death by a thousand micro-transactions. Sound familiar? It's the same reason people underestimate their daily calorie intake by 30-40%. The small stuff is invisible until you make it visible. Making the Invis