Experienced or not I want to try it anyway... who knows? That is such a great idea... I have to check it out. I can't recommend it to someone else unless I have tried it myself, you know? 
the approach is backed by experience and anecdotal data.
i typically use these memory hacks. it's the reason you want to recreate testing /performance conditions as much as possible in terms of prep vs. the read deal.
FYI
July 10, 1990
Memory: It Seems a Whiff of Chocolate Helps
By The Associated Press
THE power of an odor to stimulate memory, familiar to anybody in whom a whiff of perfume or cologne has stirred thoughts of a long-lost lover, has proved itself in a research laboratory.
College students who smelled chocolate during a word exercise and again the next day did better at remembering their answers than others denied the memory-evoking aroma.
The researcher, Frank Schab, said a memory strategy based on odor could help students studying for multiple exams or airline pilots training for emergencies.
How Smell Can Tell
His work provides the first firm scientific evidence that odors can help bring back memories, said Brian Lyman of the Monell Chemical Senses Center in Philadelphia.
Mr. Schab, who did the experiments while at Yale University, now does psychological research at the General Motors Research Laboratories in Warren, Mich. He presented his results in this month's issue of The Journal of Experimental Psychology: Learning, Memory and Cognition.
''People seem to believe from their own experiences that odors are special, in the sense that they can recall very vividly events from 20, 30 years ago,'' he said.
Aroma and Emotion
Mr. Lyman said odors, unlike sights or sounds, are processed through the brain's limbic system, which is involved in emotions. That might help odors bring back memories with emotional overtones, he said.
In one experiment, 72 Yale undergraduates were presented with a list of 40 common adjectives and told to write down the opposite of each word. They were not told that the next day they would be asked to recall the words they had written.
Each student was exposed to a chocolate smell during the word exercise only, during the later recall test only, on both occasions or on neither. All students were told to imagine the smell of chocolate on both occasions.
Those who were exposed to the smell of chocolate during the word exercise and again in the recall test recalled an average of 21 percent of the words they had written. That was significantly better than the best average from the other groups, 17 percent.
Even Mothballs Worked
A follow-up experiment showed that the same odor must be present upon learning and testing to get a memory benefit. There were no differences in the effect between men and women.
Mr. Schab also found that chocolate and mothball odors worked equally well, suggesting that a smell's pleasantness does not affect its power to stimulate memory.
Such research has many potential applications, Mr. Schab said. For instance, students studying for exams in several subjects at a time might benefit from using a different odor for each topic. And using a particular odor when training pilots to handle an emergency, and again when that emergency occurs, might ''bring back a lot of information about how to do things, what to do next, what to look for,'' he said.
The experimental results fit a hypothesis, widely accepted by psychologists, that some details about the environment in which a person learns something are stored in the brain along with the learned material. Such details can then be used to help retrieve the material.
For example, Mr. Lyman said, research shows that students perform better if they take a test in the same room in which they learned the material. Mr. Schab said he was now investigating whether odors work better than other cues.