I always told my daughter she could "owe me one".
Then, months later when I'd forgotten all about it, we may be shopping and I'd see something lovely, but would be hesitant to buy it.
She would say she'd buy it for me, and it was genuinely a lovely surprise 
Sorry, I just felt the need to tell someone that. Don't mind me.
How to Keep Living at Home Longer
When a political leader lies on their CV - can you trust them?

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