If you buy an Annual Season ticket or Annual Travelcard in the South of England, you may qualify for an Annual Gold Card which offer discounts on leisure rail travel for up to 4 adults and 4 children travelling together.
Line2line offers a combined rail and bus ticket for through-journeys between selected Thameslink stations on the Midland Mainline and Great Northern stations on the East Coast Mainline, such as between Luton and Stevenage. Which allow you to avoid travelling via central London and instead travel via bus between St Albans City and Hatfield railway stations.