Inventory is waste. It is one of the most insidious kinds of waste since it feels productive generating it. In reality it is waste.
It being waste doesn't mean you dont need it - that's how waste builds up: you create stuff in case, or you save things in case, or you build an extra large buffer just in case. It's all done with good intentions. If one of your goals in life is to be effective you need to work to eliminate as much inventory as possible, same as the other types of waste.
Overproduction, Inventory and Overprocessing are the three most insidious types of waste - they seem like good things.
Why not gold plate the thing? Just add these few features in case you need them. Why not make a few extra just in case, why not save that thing that you may need later or maybe you will finish at some point.
The other types of waste are more clearly negative.
Creative people over-produce ideas because that's what being creative means.
The problem isn't having too many ideas - it's not finishing any of them, ever. At some point you have to spend enough time on at least one project to get it out into the world.
That always means work that can be boring and feel like a chore, even if the project is the most exciting thing to happen since the invention of fire.
The difference between professionals and amateurs is that professionals have a balanced tolerance for that part of the process, and understand that you have to do at least some of the boring stuff to finish.
Amateur dabblers have none at all. When they get bored they move on, so they never finish anything. (In extreme cases they never truly start.)
Sure, inventory is waste. You need to store it, protect it and organize it. Maybe you never even end up using all of it.
The thing is that without inventory, you can't build anything. Manufacturers optimize their supply chains to keep minimal inventory and reliably acquire the supplies they need just before they run out.
...but the creative supply chain is not reliable. You need a lot of inventory because good ideas might not arrive right before you need them. Fortunately, a binder full of notes is a lot easier to manage than manufactured parts for thousands of cars.
It being waste doesn't mean you dont need it - that's how waste builds up: you create stuff in case, or you save things in case, or you build an extra large buffer just in case. It's all done with good intentions. If one of your goals in life is to be effective you need to work to eliminate as much inventory as possible, same as the other types of waste.
Overproduction, Inventory and Overprocessing are the three most insidious types of waste - they seem like good things.
Why not gold plate the thing? Just add these few features in case you need them. Why not make a few extra just in case, why not save that thing that you may need later or maybe you will finish at some point.
The other types of waste are more clearly negative.