just came across this topic while i was looking through bitcoin topics earlier and thought i'd add to this thread from a blockchain/crypto perspective! i saw this bounty campaign thread earlier on a blockchain project that focuses on improving current online shopping customer service - when the project is fully developed, it intends to actually come up with a single global shopping cart that you can use across multiple shopping websites (very useful i think if you're like me, shopping for different items across five open tabs), and even provide international size comparisons in case the online shops you're looking at originate from different countries e.g. uk to us size conversions, and also cross promotions from one online store to another! currently online shopping for items is usually a hit or miss and it's hard to shop especially if i'm looking at products from say an online store based in the US or Korea and i may not be familiar with the buying process - i end up missing on deals or getting items in the wrong size and colour, or i can't understand how the cart works (if it's in another language). if any of you are interested in shopping + blockchain, you could check out the announcement post here!