Sister in law gift ideas?

I've been in the family for over 10 years and I still don't know a whole lot about my sister in law 🤦‍♀️

She's always just kind of there, you know what I mean? She doesn't talk about herself or her life much. Pretty sure she doesn't even have any hobbies. She's 30 and has 3 kids.

My husband is not any help (not a very good gift giver lol). I drew her for secret Santa and we're not allowed to tell anyone who we have, so I can't ask her what she would like or ask anyone else in the family for ideas. Plus, we have a spending cap of $30, so that's making it even harder to come up with something good.

Doesn't help that everyone thinks I'm like the best gift giver ever, so expectations of my gift are pretty high. I'm totally blanking!