We've had 99%+ RSVP rate for any wedding, bridal shower, or graduation party that we've either thrown or been part of planning in the past decade. These are the

We've had 99%+ RSVP rate for any wedding, bridal shower, or graduation party that we've either thrown or been part of planning in the past decade. These are the types of important events that the OP is referring to and necessitate a physical invitation (he also cites them).