If you can’t help, be the facilitator.
A friend needs a sitter? Pass along the number of yours.
Know someone looking for a job? Help them network by passing along their resume.
Hear that someone you know is unexpectedly adopting a baby girl in the next couple of days? Collect gently used hand-me-downs from all your neighbors and friends with baby girls.
When you think you can’t help, you can. If you can’t drive the car, be the vehicle.