Ok, firstly I want to clarify I did not look for my present on purpose! 
Basically DH and I agreed that we would only do tiny token presents this year so that we can have a mega holiday later on. We agreed a set limit, which I found a huge struggle as I bloody love giving presents and spoiling people, and have spent the past few months trying frantically to pick up lovely, thoughtful little bits and pieces within the £20 limit.
Was feeling quite pleased with myself until.... Was packing to leave for family for Christmas and noticed his smart work coat which he won't need was a bit grubby so thought I'd leave it with the dry cleaners so it's fresh for next year, and found a mega expensive piece of beautiful jewellery hidden in the pocket.
DSis has helpfully pointed out that this happens in Love Actually and it turns out the husband has bought the gift for his mistress.... 
Pretty sure it is for me, thanks, Dsis, and it's lovely, but soooo not what we agreed.
We have got to leave in the next 20 mins to drive to remote Scotland for massive family Christmas so no time to get him anything else to even the balance. Which means that when we open presents in Christmas morning, in front of about 30 people, I will get Tiffany diamond earrings, and he will get socks and a robot bath bomb. AIBU to feel absolutely mortified, a bit cross, and completely love my darling DH for the beautiful surprise, but also a bit want to kill him?!
Should I just buy £500 worth of petrol station tat at at the services on the way there?! Pretend I forgot his main present at home and lie about what it is?!
HELP!!