Not nearly as many as there used to be.

>The demise of the store front has been predicted before. Guess what? There are still stores in my neighborhood.
>
>>http://www.slate.com/articles/business/small_business/2012/07/amazon_same_day_delivery_how_the_e_commerce_giant_will_destroy_local_retail_.html
>>
>>There are some interesting links in the article, including this one for advanced warehouse automation: http://www.youtube.com/watch?v=lWsMdN7HMuA

lWsMdN7HMuA