DD can never tell me what she would like. I think the reality is that she earns quite well through her PT job and buys most of the stuff that she wants.
I'm so stuck for ideas. She has her own very distinct style so I would find it quite hard to buy her clothes or jewellery - I could take a guess but she would be too polite to tell me if she didn't like it. Don't really want to do vouchers as she will get those from other relatives. She is very particular about what products she uses on her skin and hair.
Don't think she really needs any tech. She has a decent phone, earpods, an Alexa etc. She isn't into gaming or anything like that. She has hobbies but doesn't really need anything for them. She doesn't really want anything else for her room as it's all exactly as she wants it. 
I'm totally out of ideas! Any suggestions?