A new survey on YouGov.com asked people if wearing nicer clothes makes them more productive than wearing casual clothes.
And 31% of people actually admitted that yeah, they do better work when they're more dressed up. 50% of people say their clothes don't affect their productivity, and the rest aren't sure.
For what it's worth, women say their clothes have a bigger impact on their work than men. 36% of women say dressing in more formal clothes makes them more productive, versus 25% of men.