That may be, but it depends on the people. There are people that could resent this and see it as you rubbing your money in their face.
It's just easier to say, "it works for me." By saying 'it works, at least for me,' you're claiming that it will always work everywhere 100% of the time... then saying "but I could be wrong." This is just anecdotal evidence. It's possible that none of your friends are the kind of people that would react that way, or that you have a personality that causes people to quickly forgive you for such things.
It's just easier to say, "it works for me." By saying 'it works, at least for me,' you're claiming that it will always work everywhere 100% of the time... then saying "but I could be wrong." This is just anecdotal evidence. It's possible that none of your friends are the kind of people that would react that way, or that you have a personality that causes people to quickly forgive you for such things.