When I get cash, I try to make sure to toss a message with a picture of something nice I purchased for myself later on in the year. Like, I bought a new chair, and tossed messages to three family members with a picture, saying "thanks for the birthday gift of a portion of this chair you gave me a bit back, it's really comfy, I appreciate it.", that way they get the pomp and circumstance they might actually want in gift-giving activities, but also, I just get proper cash.