Thank you letters post birthday parties!

[Thankyouandgoodnight]

DD went to my friend's DDs 2nd birthday party - should i write a thank you letter for my DD to hers?? My friend posted a formal invitation through our door...

Not sure about etiquette!

No

She should thank DD for coming and for the present

No, for parties like thus, it's for the host to write a thank you for any gift you took with you.

I assume you and/or DD said thanks for inviting me at the party anyway.

Agree; it's not for you to say thank you after the event - assuming you said 'thanks for inviting me' whilst there.

Ta very much - I did say thank you at the time and a follow up text afterwards too.

Btw - how much is a reasonable amount to spend on a 2nd birthday pressie?