To store my flashcards from previous years, I've used this tin below. When we bought a new toaster, it came with a free gift which consisted of this selection of miniature preserves and marmalades. It's the perfect size for all of my flashcards accrued so far.
The main emergencies I have as flashcards are adapted from the 'emergencies' section of the Oxford Handbook of Clinical Medicine. The guidelines may be different depending on which country you're in so I don't recommend copying out anything I've written! At the front, I've put things such as causes and investigations.
And at the back, the management of the emergency. I've done it according to the order each action should be done in.
And just because the tin is super adorable, here's another picture. I rarely throw away metal tins like these because I always seem to find a use for them :)
Do you hoard tins like these like I do? :)