When you want to highlight adding something to Slack, combining ➕ with communication or work-related emojis nails the point. Use ➕💬 to signal new chats or channels, 📝➕📁 when you’re uploading documents, or 👥➕💼 for inviting teammates to projects. For announcing updates, 🔔➕📢 is a solid pick. These combos work well in quick Slack reminders or status updates.