I admit that I am very thrifty.
At home I re-use tea bags all the time. Nothing is wasted - yes, I have no problem eating food past its "best before" date; mainly fruit and vegetables. I like to buy food in the supermarket that has been reduced because it has to be sold/used by quickly. I then freeze them and use them when I want. I also look out for bargains but I never buy more than I need - buy one get one free offers do not entice me unless I actually want the items. I do have standards though, I only buy the best quality I can afford. I even freeze milk.
Like everyone, I'm feeling the pinch in food prices which have soared considerably here in the UK and elsewhere in the world. That's why it's so important for me not to waste food unnecessarily.
It's changed my dining habits too. Now I don't hesitate to ask for tap water for myself in restaurants (when I'm paying the bill!

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I just guess I've always been a thrifty person and I always will be.
So...how thrifty are you?