We don't pass a collection plate. We have a box in the rear of the building in which free will offerings may be dropped. The amount and frequency is a choice you make. We believe giving should be out of a joyful heart and not motivated by guilt or fear.
Every man according as he purposeth in his heart, so let him give; not grudgingly, or of necessity: for God loveth a cheerful giver. (2 Corinthians 9:7)