How NOT to buy paint

You would expect buying paint would follow a very simple routine.

1. Make a list of colours you need
2. Go to the shop
3. Buy everything on your list
4. Go home

What actually happens is the following. I expect many hobbyists will recognize the pattern.

1. Make a list of colours you need for your unpainted models
2. Go to the shop
3. Buy the paint you need
4. Spot several new models on the shelves
5. Buy one of them
6. Go home
7. Read the building instructions on the new model and discover you need 2 or 3 colours that you do not yet have
8. Go to step 1