This list of top seven business lessons from the Wiggles, a children’s entertainment group, may strike you as a bit off the wall. But, hey, being off the wall has been the secret to the $14 million the singers make every year. I’ve never seen the Wiggles on TV — this (expired) Youtube clip was my introduction. I can’t say I understand the appeal, but they’ve certainly found a market by choosing not to follow the crowd.