Exchanging or returning gifts: doing it tactfully
Quick answer
A gift that doesn't fit doesn't have to disappear into the closet.
Everyone has received a gift that did not fit. Exchanging or returning is not ungrateful — if you do it respectfully.
Keep the receipt, thank sincerely, and choose something you will use.
Thank first, exchange later
Send or say a sincere thank you before going to the shop. The giver does not need to know the item did not fit; the appreciation does.
Keep receipt, box, and tags together
Without proof of purchase, exchange becomes a discussion. Put everything in one bag until you are sure you are keeping it.
Check the return period immediately.
Exchange privately, never in the group chat
I returned your gift in the family chat is painful. Handle it yourself or ask the organiser for advice without naming names.
Choose something you will really use
Do not guess again. Use the wish list or a gift card at the same shop.
Then the original intent — making you happy — is still achieved.
Conclusion: how to put it into practice
Exchanging is not ungrateful if you thank first, keep the receipt, and keep it private. Then choose something you will actually use.