(WENY) – Although holidays are a fun and exciting time of the year, they can be very stressful. Amazon, Walmart and other online retailers have promised to deliver more orders within 24 hours of customers placing them.

The next few weeks will be the first test of whether or not they can make it happen during the busy holiday shopping season. On top of the limited time to send out orders, weather conditions can also be a factor.

This move can come at a hefty cost. Between additional planes and vehicles to transport shopping items, more workers are needed to help get those orders out.