Here is a good one. Banks charging a business a fee for depositing money into their account! See this article in the LA Times by David Lazarus:
http://articles.latimes.com/2011/nov/18/business/la-fi-lazarus-20111118
If your business is getting charged for this, you should look at other banks, or maybe have an extra personal checking account you could deposit cash into then transfer to your business account.