If you plan to keep your stick and bricks home have the cable replaced with DirecTV, then when you travel take a receiver or two with you.
For internet, we originally had a Verizon aircard that we plugged into the USB port of our computer. As I recall it was $50 per month for 5Gb of service.
Last year we got a great deal on a Samsung Galaxy S3 smartphone. So we dropped the aircard and went with a voice, text and data package from Verizon. The voice and text are unlimited and the data is 4GGb per month. We use the "teathering" option and connect the smartphone to the computer via USB port. It works great. We can talk on the phone and use the computer at the same time if we need to.