To the partners you dislike: how about giving them an actual gift then you can spend as much (or little) as you like and add an accompanying note 'I saw this and thought of you'.
I don't give money; I always give presents, tailored to the recipients. Birthdays take precedence.
Not everyone gets presents. Currently: Sister, daughters, son-in-law, grandchildren,OH and the 4 Gt.-grandchildren. Christmas adds a small gift to neice and nephew.