Seriously, if anyone in the house has a particular interest, get them something they can use. I’d be much more impressed with a Vise-Grip than another bottle of wine for Shabbos myself (besides, anyone who knows me knows you need a vise-grip to open any soda bottle cap I close so it isn’t even muktze on my Shabbos table!) :)). Everyone nowadays has enough mashke and wine in the house.
Baking yourself is another good idea, especially if you’re in a small community or a world where everyone goes to the same bakery anyway and you can assume that your in-laws have tasted what you would buy for them there.
Music albums are always a good gift for teenagers.