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You don't see the most successful people in Laundromats. Successful people don't go to laundromats. Successful people have their own washing machines, and they can throw in a load and loaf around the house thinking up ways to be even more successful.
Unsuccessful people smoke more than successful people. Successful people have more self-discipline and need less instant gratification than unsuccessful people.
Consequently the washers and dryers in laundromats are saturated every day with clothes smelling in cigarette smoke, and even if you don't smoke, if you have to use a laundromat some day your clothes will come home stinking of cigarette smoke.