I agree about hair and face products. That's why I love Ulta. I've spent enough with them that I'm a platinum member through 2018. Next time I shop with them I have 1,000 points to use- $50 of free product!I guess my k-cups. I don't think they're expensive, certainly not along the lines of Starbucks, but I get ragged about k-cups every time my Keurig box comes in the mail. I won't drink the rot-gut stuff here; I just won't.
My hair. I know it's an expense every month to get my roots touched-up. I'm not ready to go grey yet, so I spend the money. I used to do my own hair, but heavens, what a mess I made. It's easier to let the stylist do it.
As a rule, I try to buy quality products for my face and my hair. But I really do try to always keep some on hand to get me through til I find a good sale with coupons that I can use.