Google Trends is your boutique's new bestie!
Google Trends is on the rise and one of the best kept secrets out there if you are not on the "business side" of the e-commerce industry.
Trends data is an unbiased sample of our Google search data. It’s anonymized (no one is personally identified), categorized (determining the topic for a search query) and aggregated (grouped together). This allows us to measure interest in a particular topic across search, from around the globe, right down to city-level geography. - Medium
The tool provides keyword-related data including search volume index and geographical information about search engine users. You are able to look up nearly any word or phrase in the search and yield tons of data that can be used for keyword research and event-triggered spikes in keyword search volume.