say your thank you's - or thank yous'?

[LadyPercy]

as in,

"plenty of time to say your thany yous too Dave before he retires" kind of thing.

No apostrophe is needed at all. So it should be "say your thanks yous...."

'thank you's

no apostrophes, just speech marks

No apostrophes, it's just a plain plural.

Change the "too" to "to" as well!

And "thank" not "thany".

And capitals in relevant places too.

Just use:

Plenty of time to say thank you to dave...

Cheers - it's in

I just give thanks. All the time. For everything.