I guess I am really anal retentive.

I have the next 6 projects planned out.
I buy all the accessories for a plane ahead of time and put all those parts in a bin. That way when I start a project, I have everything I need down to the first prop.
I finish one airplane at a time.
When I plan my online purchases at TH, I get what I need, then buy extra "inventory" items like monokote, props, spinners, field gear, to get to the next highest discount level.
Crashing a plane, creates a situation where I have to assess the relative priorities of all my planes in the queue and figure out how badly I want to get her in the air again.

Do I need help?