So there was recently a Kickstarter for a gaming bag called the Game Canopy. It looked awesome but worked out at around £100 once you factored in shipping to the UK. However, a pro tip has started making its way around the interwebs: the carry cases for Cajons (those percussion instruments that are basically wooden boxes you sit on) are perfect for carrying a sizeable bunch of board games! Many of them are padded and the dimensions are excellent for big box games. I took the plunge and bought this one for £25:
It's pretty heavy when loaded to the brim but it's rugged, has some comfy straps and beats just about anything else I could find if you're looking to lug around more than a couple of big box games. I'll be testing this out in the coming weeks!