This isn't really a memorization tip. But smell is also strongly linked to memory. Someone had a travel tip to change your perfume or Cologne when you travel or want to remember an event well. Every time you smell that scent it will trigger memories.

But I suppose you could dab some peppermint oil on yourself when studying and then just chew some peppermint gum during a test. I think it would have a similar effect.

https://www.news-medical.net/health/How-are-Smell-and-Memory-Connected.aspx