Or even "congratulations on keeping a job and relationship you enjoy at the same level; there's nothing you can improve" :)
I guess, it's that it's awkward to do something without an excuse. And harder to remember, too :) That is, if there's no defined time to do so, it seems a bit pushy to send a message. Though a casual mention in a longer conversation or missive would work.
For "good luck with your house", I guess it's that people don't send so many cards, so a dodgy is house is overshadowed by someone else's new house. Or that it's too awkward to send a maybe card: saying "sorry, we're thinking of you" works, as does "Yay!" or "good luck about something specific", but "Remember, what you do is likely to delimb you" is awkwarder.
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I guess, it's that it's awkward to do something without an excuse. And harder to remember, too :) That is, if there's no defined time to do so, it seems a bit pushy to send a message. Though a casual mention in a longer conversation or missive would work.
For "good luck with your house", I guess it's that people don't send so many cards, so a dodgy is house is overshadowed by someone else's new house. Or that it's too awkward to send a maybe card: saying "sorry, we're thinking of you" works, as does "Yay!" or "good luck about something specific", but "Remember, what you do is likely to delimb you" is awkwarder.