With 5 families of kids and a total of 14 grand-kids, there's no way we would or could possibly get something for everyone. We're not shoppers or collectors, either here or there, so we don't get stuff for ourselves...usually. In fact right this minute my husband is loading up the truck with more stuff to put in a friend's garage sale. We need to get rid of more, not add to what we already have.
Having said that, I will admit to getting a pair of earrings or some kind of jewelry on each trip. It's small and it doesn't take up much room. And I have to confess that my husband (much more of an acquisitive type than I am) insisted on buying a rug in Istanbul. They shipped it to us with no problems. Likewise, he got me a special replica of the the Charioteer of Delphi and had it shipped home. That was a surprise and I'm enjoying both, but I've always been more of an experience person than a thing one, so without him paying for them, we wouldn't have them.
Even before RS, I packed light, lighter than I do now. For the past few years, I've been using a 22" spinner and one tote with my cross-body purse inside, carry-on only. I'm going to try to take an even smaller bag next trip -- a 20.5" carry-on. Those measurements include wheels and handles. The smaller bag does have a 2.5" expansion option, but I hope not to use it. We'll see if I stick to that on the way home when I might check it.
I was amazed to see how many people buy books. I'm one of those librarians (now retired) who never had a lot of books. We will be getting rid of most of those we do have in the next purge, I'm sure. I do read a lot, but I'm almost a 100% digital reader these days.
To finally answer your question, I bring practically nothing home except what I took over. But there's always plenty of room for another pair of earrings.