Millions of dollars of food are thrown away every month by stores and restaurants. Some new apps can find stores and bakeries near you, where you can buy surplus food for pennies on the dollar.
In my city, only donut shops and bakeries use it. I used it twice to get donuts, which isn't very practical.
I wish more places use it. Like I want to take all the extra rice that they might throw out from Chipotle. Or all the veggies that look weird at a pizza shop.
We have several hotels and company canteens that sell you what is left of breakfast buffet or lunch meals.
You have to bring your own food containers and get it filled to the brim with whatever didn't go so well that day for a fraction of the price you would normally pay there.
Local tax office canteen saved us a lot of cooking ourselves that way :-)
Exotic or unusual ingredients you wouldn't normally use for cooking.
Often also excessive amounts e.g. of bakery stuff that you have no chance of eating yourself and now have to try and distribute it among your friends and neighbours. :-)
I tried Flashflood once. Their process is confusing and ended with a store employee being incredibly rude when it was Flashfood's (and to a lesser extent the store's) fault.
Decent concept in theory, terrible execution in my experience with that specific service. It's so much nicer when the store just slaps a sticker on product already on the shelf and knocks down the price.
For me there's always some places that are better for the products i like and sometimes the selection just sucks for a while. The app says i saved $4648 CAD so far XD