How often does Clinique give out bonus gifts?

I want to go back to school shopping in july of next year with my friend... Haha I know i plan ahead... but i only want to buy stuff at the clinique in the macy's if there is a bonus gift? Will i be able to recieve one? Also if my purchase is 2x the minimum price for a freebie gift can i buy my stuff in two batches to get two free gifts?|||I think there is usually a spring and fall gifting time. I live in a family of three girls, so we send each of us up to get a gift. I would either have your friend buy you the second one, or just go back when shifts change.|||Not enough for how much they charge.