It's not very fun to shop through online marketplaces like eBay these days -- finding something that tickles your fancy may involve wading through whole categories, or hoping that your search term will find exactly what you're looking for. eBay's solution? Have the marketplace do most of the work for you. It's launching an Interests feature that creates a customized store based on tastes you pick through a simple questionnaire. If you're a hypebeast who likes yoga and the beach, you may find the latest shoes sitting alongside mats and swimwear.