Winterizing --- Antifreeze or blow'em out??

We're in the south, so don't get those near-zero temps that folks up north do. My brother-in-law had a negative experience with the antifreeze (in New Mexico - used the pink stuff in his fiver one year and worked for weeks to get the taste out of the water system the next spring). As a result, we both drain all the lines at the low points (and water heater) and then blow everything out with air. Anti-freeze only goes in the P-traps in the shower and sinks. Haven't had a problem so far - and it got down into the single digits where my BIL lives a couple of years ago.