crowdy - Have you considered any forged gifts? I mean flowers or some domestic things from https://forgedcommodities.com/collections. I have presented my DW with a bottle wine holder from that collection and she was very pleased. May be it is because she like wine;) Still, these collection look simply fantastic and I am sure you will find something unique for your wife too.

olivia4 - As you are earning pretty well, you must have given her many materialistic things. So on your 28th anniversary you can give her your time which is most important for her. Plan a whole week to spend with her. Some good resort, some tourist spot or some place she love to visit with you.