A Double Header the Hard Way

We all know what a double header is: two games in one day. But a double header "the hard way" is two games in one day - in two different ballparks. I've had the fortune to do it this way a number of times. Here's a list of ballparks with the day game listed first:

Oakland Coliseum - Candlestick Park (several times)
Candlestick Park - Oakland Coliseum (several times)
Wrigley Field - "Old" Comiskey Park (twice on consecutive days)
Dodger Stadium - Jack Murphy Stadium (San Diego)
Jack Murphy Stadium - Anaheim Stadium
Pacific Bell Park - Oakland Coliseum