One thing you and everyone can do on large purchases related to your home is Lowes (not sure about others) offers a program if your purchases are over $2,000 is to submit everything to them that your going to purchase. Do this at the commercial desk. The Lowes CSR will them submit the package to corporate and with 24 hours you'll have a discount on all items. Usual savings is around 10%-20%. Some items are a little less and some more. On a Refrig I received 19%, deck supplies 21%, fencing 9%, riding lawn mower 14%.

Then I use my CC and got the miles. I never let the contractors make the purchases. I find I get better savings making the purchases myself and paying the contractor for work only. Just an idea.