In a similar vein, I give you the Aldi fishing tackle bag:
[Linked Image]
It's a decent size and has a separate zip compartment on the base, presumably for your maggots, but which also happens to perfectly hold a Bahco 3/8" socket set. I was initally worried about its close proximity to the (hot) oil tank but I've been carrying it for five years now without incident. By the way, as far as I can recall, the tools have been used four times in those five years - three of those occasions being for issues with other people's cars!

Andy