In my French textbook for learning Spanish there is a phrase that goes like this:
Si Manola gana el millón, se va de compras con su familia.
Then, when checking what "irse de compras" means, I couldn't find anything, I could only find "ir de compras" which means to go shopping.
Later when checking some phrases with "voy de compras" I found a mix of "me voy de compras" and "voy de compras."
It seems that in the unconjugated form "ir de compras" is more correct than "irse de compras" but in the conjugated forms I am not sure which is more correct.
So, my question is which form is the correct or the most frequently used? Is the reflexive pronoun necessary, if so what is its use?