The favourite phrase of Jack is "c'est pas grave"/"don't worry".
Mummy: "theres no coffee"
Jack: "don't worry, there's toast"
Mummy: "theres no chocolate"
Jack: "don't worry, we can buy more at Champion".
When he spills a drink - don't worry, clean it with a sponge".
and he has some other great ones that I have forgotten. Just back from windsurfing so have probably no brain left.