Have any of you tried these things on your dogs?

I will be consulting my vet this week.
I adopted a shelter dog over the winter, and I discovered this weekend that he freaks at fireworks. I have heard about Pet Calm, Rescue Remedy, and Thunder Shirts.
Do any of you have any experience with your dogs with any of these products? Would you recommend them? Or other products of a similar, non-pharmaceutical type?

Please, I am only asking about products here, not training methods.

Thank you.