Question would be why exactly, keeping in mind that you can only use one at a time.
Yes, one could argue that you would need more than one a month but if you have managed to burn through all your activations and on top of that, all your deactivations and still need more than one activation for any 31-day period then sitting behind a keyboard is perhaps not the best choice of pastime.........Who knows, one just might do oneself a malady if one's activation/deactivation history is anything to go by.