Ashlee’s 30-day challenge goes for a drive to watch the sunset on the West Coast. Sex on the beach, anybody? — Day 29 The next morning I wake up a little sad, knowing this vacation is almost over. Mark see’s a tear run down my cheek. “What’s wrong, baby?” he asks. “I don’t want this to end,” I said, putting my head on his chest. “Well, today we’re going to be doing something…