Any self-respecting geek or cheapskate has no doubt had his eye on the Nest Learning Thermostat, the sexy (yes, sexy!) programmable thermostat that learns your heating and cooling habits and uses that knowledge to lower your bills.
Alas, you have to spend money to save money: the Nest sells for a rather steep $249. But not today: Lowe's has the Nest Learning Thermostat for $198 shipped, plus sales tax where applicable. And you can do a little better still if you start your purchase at TopCashback, a rebate site that's currently offering 6 percent back on Lowe's orders. … Read more