Here's a real quick guide showing how you can save up multiple copies of any Memento in the game easily for future use! This will allow you to save a total of 4 copies of each type of Memento, so one per character and then one in your actual inventory.
Of course as mentioned this works with all current and (hopefully) future Mementos including the Festival of the Lost and Dawning Mementos!
Timestamps;
Intro - 0:00
How Mementos drop and work - 0:17
How to store multiple at once - 0:37
Things you can do to fill your inventory up - 1:08
Brief Summary - 1:55
Why you should save multiple - 2:10
Outro - 2:30

And that's it for this one! Nice quick and simple way to get many of your favourite Mementos at once without needing to use them immediately! Since personally I don't have very many weapons I want to use them on anymore as all my main crafted weapons have the Trials or Lost Mementos equipped already, so having a way to save a bunch for crafted gear in future seasons is great.
As always though feller's thanks for watching!

#Destiny2 #FestivaloftheLost #TheDawning #DawningMemento #LostMemento #TrialsMemento #GambitMemento #NightfallMemento #Memento #CraftedWeapon #Crafted #TheEnclave #Enclave #Shader #TwilightKeepsake #GleamingKeepsake #RimeKeepsake #Store #MultipleMementos #Inventory #TalesoftheForgotten #Lore #Entries #Book #SpectralPages #ManifestedPages #Festivalofthelost2023 #TheDawning2023 #2023 #Sniper #Mechabre #JurassicGreen #BreytechWerewolf #HorrorStory #Acosmic #BlackShader #HauntedSectors #HeadlessOnes #Pumpkin #Haunted #LostSector #Halloween #Avalanche #AlbedoWing #Zephyr #Glacioclasm #ColdFront #StayFrosty #Christmas #Event #EventCard #Rewards #Title #Seal #GhostWriter #StarBaker #Gilded #Ghost #EvaLevante #Eva #Quest #New #Updated #Drop #Reward #Showcase #Shaders #Season22 #Season23 #SeasonoftheWitch #SeasonoftheWish #WitchQueen #Lightfall #FinalShape #TheFinalShape #Warlock #Hunter #Titan #Rare #Playlist #Skeleton #Rewards #Masks #Destiny #Twilight #Triumph