To just say no?

[yourahohoho]

My friend has a awful habit of asking me to pay for things for her then not pay.
At first I thought she just forgot/or genuinely had no change.
Last week I went into town and bumped into her in Wilkinson's.
So ended up going around the shop with her.
She said she was picking up a few bits for her mum.
We got to checkout and she asked me to pay for a couple of her bits and she could pay for her mums separate.
So I just said ok.
It was only £3
We got outside and I gave her the bits and she said "oh you know I'm sure I've only got a £20"
She started looking through her bag saying she had no change.
So I just said "just buy me a coffee next time we go for one"
I just use my card mostly lately so I didn't have the change of the £20 note.
This isn't the first time.
Before Xmas we went to Costa (it was take out only ) so she said "oh grab me a tea and a muffin "
I did and we sat outside and had a chat.
She didn't mention the £4 and I didn't want to look cheap/tight so I didn't say anything.
Aibu to next time say no I've got no change?
Do you think she knows what she's doing ?

I would be saying no. She is using you and the more you let her get away with it the cheekier she will get with it.

Surely she has a card that she can use? Very few people use actual cash these days

She probably hasnt realised how frequently she does it or that a pattern is forming but yes, she knows and she doesnt care.

How is she with borrowing or using other people's stuff generally? eg borrows pens but doesnt return them, borrows household items (like baking tins or something similar) but doesnt return them?

Definitely CFery, how many people would have the balls to ask someone else to pay for their shopping. If you're doing two separate shops you put a separator between them and tell the checkout person that you need to pay separately.
You need to just say no sorry, dont have enough, actually could you get my coffee, you still owe me for the shopping you asked me to pay for you when we were at boots.

Next time remind her that she owes you X and could she pay it.

She absolutely knows what she is doing.
She's mean and she thinks you are a soft touch.

What is the point of meeting someone if every time the ask for money?

She is a CF.

Don't be a mug.