I have a 99 cent white binder with college ruled paper. This way I can change pages right around if needed. Every plant in my inventory list in alpha order. I keep track like a journal with random date logs. Emerging bloom stalks, bloom dates, height, avg bud count, dates fertilized, dates received and planted.
I don't keep track of vigor...yet or inventory.
My fear is one day all computers will crash(they won't) and all data will be lost.