With availability varying by ZIP code, FreedomPop offers its refurbished Freedom Spot Photon Platinum Edition 4G Hotspot bundled with a Car Charger, and FreedomPop Casual 2.5GB 4G Internet Access 1-Month Trial with 500MB bonus at signup for $19.99 with free shipping. That's even better than our mention from last month (which did not include a car charger) and $24 under the lowest total price we could find for a new hotspot alone. It provides WiFi for up to eight devices.
Note: No warranty information is provided. The 2.5GB data plan trial is free for the first month only; additional months will be billed at $17.99 per month. It can be cancelled at any time.
There's a less expensive way, and then there's the way that works for you. The two may not be the same.