What do Home Depot, Anheuser Busch, and Carmax have in common? Here’s a hint: Bank of America, American Express, and General Electric have the same thing in common. The answer is they are all investments by a “mutual fund” that does not charge you a load fee or annual expenses. You’ve no doubt heard of index funds that charge 0.15% or so a year in expenses. Well how does 0.00% sound? If you like free in your mutual fund, forget Vanguard or Fidelity. Instead, think Berkshire Hathaway.