Totally agree with earlier comments re the savings plan, your spending rises to meet your salary - therefore reduce the money available to spend and get a portion auto deducted by direct debit into a savings account. Do it on the day you receive the cash, or close to it if the day fluctuates, - if you are with AIB use their online savings account - where you can transfer up to 1000 pm.
Also suggest you start this savings plan asap and save the amount that it would cost you to rent equivalent accomodation.
Have you elected for joint assesment for tax purposes, ensuring you receive the transferable allowance from your spouse?