I have mainly used visuals and touch to help me remember something, be it through a story, an association, or all of the above through a memory palace.
Is anybody regularly using hearing ? Taste ? Smell ? And if so , can you share some examples, some concrete use of them?
I am constantly looking for ways to diversify my experience and could use some inspiration from my fellow memowyzers and memowyzerin !
I have Neil Diamond in my PAO, so whenever he’s in a location I add a sound that either action or object adds to the scene because of the his song “Beautiful Noise”. Got a couple more singers and actors that adjust their catchphrases to the action or object in the scene. Not too many though because it’s only natural with a few certain ones.
Not for general memorization of digits or things, but wine tastings you would. This might be an interesting read about how to apply that: The Secret to Blind Tasting? Learn The "Tasting Grid" | Wine Folly
That is very interesting, am trying to develop the use of audio, this is helping. Ill try using a song brought up by what I need to remember.
Sweet Caroline!
P.s I had chosen Neil Diamond also! But Neil Young would appear instead of him and I eventually gave up on poor Diamond and Young is right up there as 94 brushing Nefertiti s hair with his harmonica.
That’s okay… I got Dr. No from James Bond as an image but it’s actually Dr. Evil form Austin Powers… as long as you translate it back into the correct number it’s all fair game.
Maybe this might help:
Beautiful! You have just replaced my years using Nefertiti with this woman!, you Inception!! Beware all Bjoern is an inception agent!!! Nice!
If I were to build my number system today, Diamond wouldve survived, but I was just terrible at finding tricks at first. Today Id simply had placed that Pulp Fiction “youll be a woman soon” unforgettable scene and a piece of that wouldve been my 94, saving Diamond from extinction.
I am intrigued, what your smell/taste system would be like?
For remember ing smells and taste or using smells and taste to remember, say, numbers?? Very thought provoking for me.
Funny… even though my PAO for John Travolta involves a giant needle and an overdosed Mia… as far as acoustics, I always get “Sandy” from Grease when he’s in a location…
Well, hindsight is 20/20… I’d have probably chosen something Grease, Saturday Night Fever, or Staying Alive… but somehow the most memorable thing at the time was that giant needle. Some images do get updated over time though… like the Dr. No and Dr, Evil thing mentioned earlier.
I haven’t replaced many Ps over there years but for some their As and Os have changed a little… I don’t think systems have to be 100% static… I mean, we evolve and get a different understanding of our system’s characters… and they also evolve, a Paul Newman in The Hustler is different from a Paul Newman in The Color of Money… even though it’s basically the same character.
Of the five basic senses (touch, sight, hearing, smell, and taste), I rely most heavily on sight, followed by touch, and then hearing. I find it difficult to imagine smells and tastes as vividly as the other senses. Not all of my mental images have a taste or smell associated with them.
While sight is crucial for memory palaces, which I believe everyone uses to some extent, I also find touch to be very helpful. I often incorporate sounds into my memory palaces as well. For example, if I imagine a car speeding through my memory palace, I can almost hear the roar of its engine.
So, out of hearing, taste, and smell, I definitely utilize hearing the most. Taste and smell are simply not as strong for me as the other three senses.
Taste and smell go together for me more or less. I use it to distinguish certain loci that are similar. For example if several loci are a bank in a park, one is near an overflowing stinking trash can, the other at the entrance so you smell gasoline because of the road with heavy traffic, by the third you smell freshly mowed grass, near the fourth you smell the aroma of coffee and waffle from a street seller, etc.
Your use of taste and smell in memory techniques is interesting. I don’t use these senses much myself, mostly sticking to visual, touch, and some sound elements. Taste and smell are trickier for me to imagine clearly. But your idea of using specific scents to set apart similar spots in a memory palace makes sense. It’s a good point that mixing in more sensory details can help with memory work, even if some senses are harder to use than others.
I think the key, rather than which sense is used, is to imagine the logical consequences and the emotions that go with it.
To take the same examples again:
I don’t want to sit in the bank near the trash can stinking to high heaven, it’s disgusting and I imagine insects crawling everywhere, yuck. 
The smell of freshly mowed grass on the other hand is pleasant, but I still don’t want to stay there too long, because I’m allergic to pollen/grass and I know I’m going to begin sneezing soon (not unpleasant in itself but sense of urgency). 
The smell of coffee and waffle is definitely pleasant, but maybe I feel guilty because I’m on a diet and I shouldn’t actually eat waffles everyday. But if I allow myself to eat it once a week and today is the day, the anticipation of getting my waffle means I’m super excited 
Oh and for memory palaces which are very big and where I want markers every five or ten stations I use the exaggeration/multiplication trick to make it stand out in my mind. I use whatever makes sense in the context. For example, for station 055 “rassasié” (=full, satisfied) in my PAO, the person is a baby who just finished his bottle and does a huge burp, so loud it reverberates between the houses and cracks the windows. And the people on the street are like “Oh my goodness! How big IS that baby? Was that baby Hagrid?” 
The classical marker is a golden hand, but really that’s kinda boring, and random - why would there be a golden hand here and not at the next locus? No reason. But nobody else is doing a giant burp so it can only be the rassasié/055 baby!