If you need a little push to start planning your next holiday, the Getaway 2 Give (G2G) Collection—the latest contender in the luxury-vacation-club market—now lets you pair your penchant for travel with philanthropy. In addition to facilitating tailor-made travel experiences around the world, the G2G Collection donates half of each member’s $15,000 initiation fee to any charity of choice. The remaining cost, plus a $5,000 annual fee, covers vacations that include chartered cruises down the Panama Canal or thro…