Trying to save money this year - any clever tips?

Lots of good ideas. One thing I find very useful is to plan meals for the week and check what you have in the cupboard and freezer before you shop.
Sometimes meals get swapped around but it has certainly cut down on waste.

I save £40 a month to add to my usual holiday savings, then every 3 years we go somewhere special and more expensive.
If you can just set aside a smallish amount each month it does grow. Smaller points - I transfer the odd pence in my current account into my savings account everytime I look on line at the balance. Be sure to use your Nectar and Tesco Clubcards for every purchase. Don't buy new clothes on impulse - impose a cooling off period and decide if you really want them. Also all the usual stuff recommended like menu planning does work.

Lots of great suggestions so I don't have much to add, except that being retired and now on a somewhat limited income I have several small savings accounts separate from our regular current account.
Each month a certain amount is paid by bankers order into each one - eg: House account and Holiday account. I have one little account called the 'cushion' account - it receives a little each month like the others but anything left over or unexpectedly received each month also goes into that one.
Being a 'cushion' it also works the other way - if there is a little too much month left at the end of the money it can be used.
Having these small accounts doesn't raise much interest but then nothing really gives great interest these days does it!
Good luck and enjoy the wedding !

Shop at Lidl or Aldi if you don't go there already. Try shop's own alternatives to the well known brands - some you'll like, some you won't. Some people time their supermarket shopping to coincide with when the reduced price goods are put out.

Don't buy premium unleaded fuel for the car, use the ordinary one. There was a programme on TV some months back which showed no benefit in buying the premium one unless you drive a high end vehicle like a Porsche.

Congratulations and what a wonderful place to have a wedding!
We ended the last months of 2019 on a budget due to early retirement. The most important thing we have found is to right everything down to keep track of spending. It makes us think, "Do we really need this?"
Also, we are less wasteful but more careful with heating, food, petrol etc. We also looked for alternatives to things like our SKY package and pet insurance. Going out for meals has also been curbed.
I'm sure in a year or so you will have saved enough money to at least buy your outfits and pay for your holiday expenditure.

Italy is a beautiful country and if you can it’s well worth extending your visit. I can only say decide on a sum you can afford and put that amount away at the start of every month (before you have a chance to spend it). Book flights in advance because they get more expensive the closer to the date, and enjoy the wonderful opportunity to see your granddaughter get married.

Do sign up to Topcashback if you don't already use it. It is so easy just click on button and then click through to wherever you wanted to shop. Many retailers give you a percentage back for your online spend. If you buy insurance products like house or car insurance including through comparison sites then you can often get a cashback amount up to £100 per product. utilities to get cashback too. I only started Nov 2018 and have now got over £400 I can claim back.

Look out for money off fuel when you shop.

Go through house and put anything you don't want on to ebay for collection.