The thing about Walmart is that it forces you to be better. 

Scott McClelland, H-E-B

For those that whine and complain about the "Walmart Effect" and its impact on their small business, they have another thing coming.With Amazon's launch of local state tax collection in California this week it's only a matter time before the other 49 states fall in line.Amazon has given up lobbying the various governments to stop or delay local taxation. They are now putting up logistical distribution centers in every state. This is going to allow them to easily make next day or even same-day delivery on significantly more of their inventory.Do you think every mom-and-pop or even regional retailer has seen this coming and thought about the impact on their sales?  I don't either, I think very few have seen this coming,But it's a game changer that everyone is going to be hit by but few are going to respond and come out better than they started.  Better than Amazon.The Walmart Effect will pale in comparison to the Amazon Effect.