Did you know that the EHIC (the fancy plastic replacement for the old E-111) expires after a short period of time? No? Perhaps you ought to check the date on that card in your wallet (or the bottom of the drawer with the passports – wherever you keep it). You might, as I did, get an unpleasant surprise. In any case, you can renew your own card, that of your partner/spouse and those of any dependent children using one easy form at this website.