@Queenie6655
Guys these are amazing
So todays example
In a coffee shop she sees an expensive pie i buy it
She doesn't want it then
She spots a horse in the gift shop 30 pounds I say no it's not for sale go pick a small toy
She begs and begs
Shop owner steps in and says sorry this toy is reserved for someone else
So she starts hitting me
EVERY FCKER IN THE GIFT SHOP WATCHING US
5 mins later I get her out
She begs to go back in
We do
I buy her a fcking useless teddy 13 pounds
We went In for a coffee
So almost 17 quid down and huge out of control tantrum
I wanted to get her back to car asap and she totally refused so had to take her back in as was causing scene and I had baby with me
She begged to go back in and you took her in!!! Lesson learned - if I beg hard enough Mum will give in!
Sorry but I think that your DD needs some clearer rules: "We are going to the shops now but we are not going into the toy shop/gift shop today. We are going to get some (e.g.) potatoes - it would be a real help if you could hold the bag for me and pick out the best ones. Perhaps you could bring your little bag and be my helper etc. etc. etc."
Give her a role, a purpose rather than her just being someone who gets taken along to these outings.
Also, talking about money often helps. "This is how much money we have today - we have to get x ,y, and z so we can have some food for tea - let's see what we can get. Of course paying by card rather scuppers that ploy! - but if you tried a bit of cash shopping and involved her that sometimes helps - not so she can see there is not enough money left for expensive toys, but simply so she is involved.
Getting inside her mind - or trying to! - often helps. E.g. "Oh lord we are going out again, how boring - what can I get out of it? - ah, I know let's drag Mum into the gift shop and see what I can get!! The baby has lots of new things, so why shouldn't I?" Telling your DD what the limits and boundaries of the trip are, and involving her might help a bit.
It may be that coffee shops are not on for a while - maybe she is too little. Trips out with pre-schoolers need to be ones that they will enjoy; ditto holidays. For a while most of your activities will need to be child-centred - in the sense that they are things they will definitely enjoy - park and swings, whatever - it makes for an easier life - which is what you need at this stage of parenting.
And never forget: if your OH had become besotted with another woman and behaved as though you should not mind, I think you might feel like hitting him! This is where child number one is with the new baby.
Good luck.