Any suggestions for a great birthday surprise for my husband?

I have until December to come up with a great idea to surprise my husband with on his birthday. Problem is I don’t have a lot of money so I’m working on a shoestring budget. What are some things guys here on this forum would like their wives/girlfriends to do for them on their big day? What would really blow your mind and make you think “wow I can’t believe she thought of this!” Please be creative because like I said, money is tight right now.