So there's this cashier at the local Dollar General that is always saying "God bless you" and "have a blessed day". I ignore it mostly, but my daughter is not so tolerant. One day, as I'm standing aside watching my daughter check out with this cashier, I hear my daughter say "hail Satan" in response to the "blessed day". The look on the cashier's face....

A funny one would be, hey while you're ordering, can I get two double cheese burgers with no pickles or onions, and a large fry...

I always say, "Thank you," and smile. What the hell it takes no time and uses face muscles.

I don't mind if people pray for me. They mean it be a kindness.

I tell them to go f*ck themselves!
I love the way THAT sounds!

No point in saying anything at all
It’s their time and foolishness so let them

When someone says, "I'll pray for you..." I respond, "And I'll THINK for you."

Happens to me all the time. I usually don't say anything or just thank you.

Depending on the tone, i might ignore it, smile or tell them,"I'll dance naked in the woods for you!"

And I'll think for you.

I guess something like: "If that makes you feel better, go ahead. I'd rather use my hands for something more useful than praying."

Nobody ever says it here in Australia, not even the religious people who I know. Perhaps they know that I am beyond praying for.

What are you supposed to say, when someone admits that they plan to waste minutes of their life in a meaningless gesture on your behalf? Umm... thanks, I guess.

"I don't believe in an invisible being that resides somewhere beyond the clouds."

That shuts them up. Mission accomplished.

"I'll write a letter to Santa Claus for you."

Depends on who it is, and what motivates the statement.
My dear BFF of 55 years: I just give her a hug. I know she’s religious, she knows I’m not. No need going into it; we use our own shorthand.
Stranger or obnoxious proselytizer: anything from ignoring them to saying ‘thanks. You pray for me, I’ll wish on a star for you’.

I don't feel the need to be "nice".
Saying "I'll pray for you" is rude AF.
I have no problem saying so.

I tell them thank you. They mean well.

Thank you.. And smile...

I would just say “Thank you” and move on. Even Hitch was known to respond in such a way, especially in the later part of his life when we was sick.

The fact of the matter is that the overwhelming majority of people who say that never do. They are just meaningless words that make those people feel more Christian.

I usually say I don’t believe in it but knock yourself out.

I don't usually say but if they want to pray make it a blow job just as real

Depends on who they are and how snide a comment they can handle

Mostly I say Thanks and leave it at that. Sometimes I say, "thanks, I'll tell the ravens" and when they want to know what that is all about I show them my tattoo of Huginn and Muninn , Odin's ravens and messengers. Most people shut up and not bother me again . The younger crowd is fascinated, so I can tell the sagas. There are never any repeat prayers.

I am polite allow them to be nonsensical or ask if they could pray me up a blow job or lottery win