How easy is it to get from Parkhead to Queen Street after the game for the last train back to Edinburgh??
You could just go to Bellgrove and get the Helensburgh to Edinburgh train. It'll take just over an hour from Bellgrove but probably quicker than going into town and back out again. Edited to say Bellgrove is a 10 minute walk from Parkhead and you'll be able to get on a train ahead away from Glasgow no problem. They run every half hour though and I think the last one is around 10 pm.