With activation of a new 1-year agreement, Vonage offers its Vonage U.S., Canada, and Puerto Rico Unlimited Phone Service Plan bundled with a $55 Costco Gift Card for $9.99 per month. (The gift card can be used for Costco purchases or membership fees.) Even better, it includes free activation and a phone adapter for free with free shipping. Assuming you'll use the gift card, that's essentially $5.41 per month for your first year, a $120 savings for the adapter and activation fees, and a very low price for this phone service. The plan includes unlimited local and long distance calling in the U.S., Canada, and Puerto Rico. A high-speed Internet connection is required. Some exclusions apply.

Note: After your first 12 months, the monthly fee is $25.99. You must subscribe to Vonage for 61 consecutive days to receive the prepaid card. Allow up to eight weeks after the 61-day requirement to receive the prepaid card.