: Obtain the correct version for your game's patch (e.g., version 1.26 for the Pets expansion).

: Limits memories to significant life events only.

: You can also natively disable memory notifications in The Sims 3 by going to Options > General Settings (the gear icon) and unchecking "Enable Memories". Related Mods for The Sims 2

by DiLight at Mod The Sims stops specific repetitive memories like "Met Sim" or "Burned Food".