Smell is such a powerful memory tool, and I have found that I am unusually receptive to smells - especially on people.
I have pinned down "my" aftershave - BOSS by Hugo Boss if anyone is interested. A person who does not match their aftershave to their smell, will smell bad. Their body smell will clash with their perfume, and the result isn't nice. Someone who matches their body smell and their perfume has the ability to be remembered every time the other person smells the same scent.
I wear aftershave most of the time, but always on business, where I do an especially sneaky trick.
Alongside my normal squirt on the neck in the morning, I do my palms too. Then when going into the meeting, I don't reek of it, but body heat makes sure that when I shake hands, my aftershave rubs off on their hand. Then if the meeting goes well, every time they put their hand to their face for the rest of the day they will be reminded of me in a positive way. The cleverest bit is that they are very unlikely to realise that the memory is being sparked by their hand as the smell will be so subtle.
If they didn't like me, they will still be reminded of me, but wouldn't have done business anyway
