Same-day delivery: a phrase that has changed the future of logistics, e-commerce and the industrial industry.

From books to flowers to groceries, from electronics to clothes to beauty products — e-commerce sales reached 8.4 percent of all retail sales, or $1 trillion, as of 2016; by 2019, that sales number is expected to jump to $3.4 trillion, according to E-commerce in the Bay Area, a year-end 2016 report by JLL.

When online shopping first began — and in the catalog industry before that — one of the frustrations was the long wait between purchase and receipt of a product. But as supply chains have become more efficient, delivery times have become shorter. Online retailers are beginning to use two-day, one-day and even same-day delivery as added enticements for shoppers.

The JLL report also noted a Coldwell Banker survey found the millennial generation (ages 18–34) is the most influenced by fast delivery options when considering online purchases