No matter how busy you both are, set random weekly calendar appointments to drop everything and spend 10 minutes together—in person, via Zoom, on the phone, etc.
Buy a pack of word magnets and leave little notes for your family on your fridge! This can be a fun way to create moments of affirmation throughout each other's busy days.
Practical and sentimental! Gift a "You Are My Person" product for a close friend or spouse.