For travel within the U.S., you can transport two bottles of alcohol without raising any huge flags.
If you check in a bag with two bottles of wine and put all your charger/appliance cables packed in with those bottles, you'll get the TSA inspection paper.
If you bring cheese in a carry-on bag, get ready to explain that, cause it looks funny when they screen it.
The metal foil on cigarette packages trips the metal detectors. If you stick a pack of smokes in your sock by your ankle, they'll want to talk to you.
If you have a small 1 oz silver piece, don't put it at the bottom of a pack loaded with a crapload of DVDs and CDs. You'll have to haul that all out and ask repeatedly WTF they are looking for.
Anytime I get through the security bullshit without any of that happening, I consider it bonus. But, I expect it, so don't get upset when it happens.