I got serious about fitness as I am on the backside of my 40s and want my 50s and 60s to be as active as possible and still do the stuff I love (certain types of hunting, wade fishing, hiking, snow skiing, etc.). So I quit drinking a few years ago. And now I meal prep lunches exclusively. Eating healthier has never been cheaper. People who claim eating healthy is expensive are full of shit. I make a protein shake for breakfast and pre-workout in blender. Meal prepped lunch (usually wild game and veggies). Protein shake for snack. Normal dinner.
Quitting drinking saves a ton. Now instead of getting pre-dinner cocktails and then splitting a bottle of wine and often two, my wife will just order her a glass. We often just split a salad or app and entree also. Restaurant portions are huge. Also no need to uber any more since I am all time DD. Nights out are much, much cheaper.
Meal prepping lunches instead of eating out or just grabbing a sandwich, drinks and chips saves a minimum of $50 a week.