Cell phone service for less — the cheapest plans we've found at each phone carrier

Cheapest cell phone plans at wireless carriers.

I keep tabs on what phone carriers charge for wireless data plans, so I can recommend the best cell phone plans overall based on a mix of price, perks and coverage. If money's really tight, I can even point out the best cheap cell phone plans under $40 that deliver value beyond their low cost.

But what if money is not just a concern, but the only concern? What if you're looking for the cheapest plan available, regardless of any perks it contains.