In the past I've tried various free accounting tools, but sadly none of them could track account/card numbers (EDIT: while processing bank statement exports). I don't need to track my many bread and pastry purchases, but I'd like to track things like investments, split lunches, rent from flatmates etc.

I have multiple accounts and I need to track transactions between them, and also distinguish them for all other transactions. Could anyone here recommend a tool that deals well with this?

I'm partial to semi-ad-hoc plain-text bookkeeping, which I already do for other things, but I'd be happy for any recommendations.