Photo by Karolina Grabowska https://pixabay.com/en/users/kaboompics-1013994/
Cut meal costs in most cities by eating at one of the many restaurants in a dept store. They're not exactly a gourmet dining experience but can save you a fortune (eg $1.95 for a full breakfast at IKEA).
For those staying in hostel or guest house accommodation you can also buy simple prepared supermarket meals and microwave them.
Either or will let you save your money for the important stuff like beer, wine and chocolate :)