It's funny how some things come to us automatically. When you go to pay your bill at a restaurant, you add in 15% for tip, or when you're invited to a wedding, $50 - $100 is inserted into the card for the bride and groom. Our culture has engrained these numbers into our mind and therefore, we adjust our lifestyles, budgets, etc. to account for them. Here are some numbers that also should be remembered as they can have a profound affect on your financial life:
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