Something for the space where he spends most of his time. A desk lamp that does not make him squint. A mug that keeps his coffee hot for actual hours. A plant that he might occasionally remember to water. Bedding that is genuinely comfortable rather than whatever he currently has thrown on. These gifts work because they improve the comfort of his everyday environment without being fussy or decorative in a way that feels wrong. They are practical additions to his space that he will notice and use every single day.