[Bekwnn]

I started learning piano just over a year ago and picked up reading sheet music decently in an extremely short amount of time.

The gaps is the treble clef are

    | F | A | C | E |

The bass clef is the same but shifted down one gap (and the highest note is G)

  F | A | C | E | G |

And then middle C is, well, C. Just remembering that FACE goes in two places you get:

    bass clef          (C)  treble clef
  F | A | C | E | G |   |   | F | A | C | E |

And from that it's easy to go to the closest note and the count up/down one note and gradually memorize more. This was, at least to me, a drop dead simple way to memorize where everything goes.

[coliveira]

This is a little better, but don't do this. You still need to calculate what are the notes outside of F A C E. Just memorize each note independently, it may take longer but it is much easier after that. If you continue using clutches like this, you'll forever have to do the translation in your head, which takes a lot of time and effort.