#### [[Johnny Decimal]]
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# Concepts
## Step 1
At the top level divide and label everything into 10 overarching buckets. These buckets need to be unambiguously different.
**ex:** `Finance`
## Step 2
Under each bucket divide into 10 again and these are your categories
**ex:** `Finance/Tax Returns`
Inside the categories you can put anything. any type of work you do.
Our areas from Step 1 receive numbers, if `Finance` was the area over categories *10-19* then we can assign the Categories numbers between *10* and *19*.
**ex:** *11* == Tax Returns, *12* == Payroll, etc.
## The Numbers
in Johnny Decimal the numbers are always 2 digits on either side of a period
**ex:** `42.18`
The number before the decimal is the category. `Finance` is just the area of the categories to it may look like
```
Finance 10-19
├── 11 Tax Returns
│ └── 11.07 File number 07
└── 12 Payroll
```
## Fixing Email
Putting the Johnny Decimal number in your email subject lines makes your email instantly searchable according to the categories you set. Combined with additional query criteria like names or content it becomes easy to track things down.
## File Search
If you have file names with Johnny Decimal numbers in them then using something like Alfred makes it easy to hunt down your files.
In the command line auto complete directory names becomes easy and grep the numbers out of the documents.
# 00-09 Meta Management
Reserve the Johnny Decimal numbers `00-09` for `Management & Meta` about the system
**ex:** `00.00 Index`
# Dates and times manager
can just easily retain my use of temporal sorting with the Johnny Decimal numbers
`41.18 20201220` **or** `41.18 2020-12-20`
Extending email search with `[41.18.20201220]`
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