My wife almost does all her clothes shopping on Amazon as she can order multiple sizes of clothes that she likes, try them on, and send the sizes back that doesn't fit for free as long as it's a prime qualified item. 

I'll have to look and see if Alibaba is here in the states. I've heard of the company before and know it's an "overseas" company, but don't know if they have any presence here in the US.

In store pick-up is becoming more popular here. Basically download the app, shop from home, then they will pick up and bag your products, you show up to the store, and they load up your car with the goods you ordered online. Mostly for groceries.