Always have your headshot/resume with you. Always.
Keep a few in your bag, in your play binder, in your car. Seriously. I can’ t tell you how many times I have seen great actors miss an opportunity to get their headshot/resume in front of someone amazing, who has asked for it(!), but they didn’t have one with them. This is so basic, yet utterly important. Help the reputation of all actors. Please have a headshot/resume with you.
And thus ends my rant.