My memory's usually pretty good, but... (Destiny)
For some bizarre reason, I can't seem to internalize the three Champion symbols. (Well, two of 'em. I'm okay with Barrier.) When I see the symbols for Overload or Unstoppable, even though I've been shooting (and spec'ing for) Champions for a couple of years now, I have to check which is which. Yes, I know there are only 2. I don't know why it's such a tough thing for my brain.
Over on Reddit, u/totnac put together a simple graphic - I think it helps.

That's a Pretty Good Mnemonic!
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Love it!
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Better version
;)

This
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Have I ever told you you're a terrible human being?
You are, you know.

Damn you...
cannot unsee.

Have I ever told you you're a terrible human being?
You are, you know.

Here's an even better one

I'll do you one better

We have a winner!!!
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