The British Newspaper Archive is running a mini promotion to non-subscribers: three free page views in return for registering an account. Following the recent spate of new Irish titles in the database (it now includes 81 historical newspapers published in Ireland), this could be good timing.
I've just gone through the registration process myself. You sign up with your name, email address and password, and decide whether or not you want to receive further emails of offers etc. A validation email is sent to the address you provided and that's it. You're free to search and view your free copies. No financial information is requested, and there's nothing to remember to cancel.
I've no idea how long the promo will last, so best take advantage of it now!