How do you instantly relieve stress in the moment without using food?

Most of the advice I see on here for dealing with stress-eating involves doing things like going for a walk or exercising or meditating.

I don't have time to do that, especially when I'm working or when I'm taking care of my three young children. I have some leisure time, but it's not like I can enqueue my stress for the evenings.

I need an alternative to food that works immediately. Has anyone here successfully transitioned from stress-eating to stress-vaping/smoking? If so, how did it go? I haven't ever smoked anything before, so I'm not sure if it'd work the way I'm expecting.