I, like many autistics (and, from what I've seen, like my friends the ADHDers), absolutely suck at finding things. Set it down on my desk, and poof, it's gone. If I'm looking for something I haven't seen in days? No luck.
But recently, my dad taught me a trick--don't look for the thing. Ask if what you see is what you want to find.
Looking for the pink sticky notes in your drawer? Don't just aimlessly go "where the fuck are my pink sticky notes?"; instead, examine each thing and say "what's that? Tape. What's that? A pen. What's that? A candy wrapper. What's that? OH IT'S MY PINK STICKY NOTES!"
Same concept for finding a certain book on your bookshelf. "Where's Lord of The Rings?" isn't very helpful; going "That's the Hunger Games, that's Cinder, and that's LOTR" is.
Same concept for food in the fridge. "That's milk, that's eggs, that's the cheese I was looking for".
Same concept for basically anything you're looking for. I don't know 100% why it works, but I'd have to guess that by eliminating the general "sweep around" type of searching and forcing yourself to actually look, your brain can't do the weird little "let everything fade into the clutter" thing that a lot of ND brains (and some NT brains!) do.
I hope this can help someone! :D