[cle]

I mostly put everything in the same deck. There are a handful of notes that are similar or contain the same information, it's not really a big deal. If it really bothers me, I just suspend the duplicate while studying and I never see it again (this is trivial to do in the mobile app).

I have a custom note format that I use, with custom fields and custom formatting. It looks something like this:

  Front
  Back
  Context
  Source
  Date
  Author
  Hint
  Extra
  Reverse

"Front" and "Back" are self-explanatory. "Context" is shown on the front of the card, if specified, and is a reminder of the broad context of the note (if it's a note about Python, for example, then I'd put "Python" in the Context). If "Reverse" contains any text, then Anki will generate two cards: front->back and a back->front, which lets me test both directions of the knowledge (it's really helpful to be able to recall information in either direction).

Here's the note template I use (sans formatting, which is standard CSS):

Front:

  <header>
    Deck: {{Deck}} {{#Tags}}&diams; Tags: {{Tags}}{{/Tags}}
  </header>

  {{#Context}}
  <div id="context">{{Context}}</div>
  {{/Context}}

  <div class="front">{{Front}}</div>

  {{#Hint}}<div class="hint">{{hint:Hint}}</div>{{/Hint}}

Back:

  {{FrontSide}}
  <div class="back">
    <hr>
    {{Back}}
  </div>
  <br>
  <div class="extra">{{#Extra}}{{Extra}}{{/Extra}}</div>

  <br><br>
  <div class="metadata">
    {{#Source}}Source: {{Source}} <br>{{/Source}}
    {{#Author}}Author: {{Author}} <br>{{/Author}}
    {{#Date}}Date: {{Date}}{{/Date}}
  </div>

[emilga]

Thank you! :)