How to Save Money in New York City

I have a credit card that i only use for eating because i get four times points on it. I just paid blake 20 bucks for groceries that will last me at least like two to three days. Sometimes i don't buy certain fresh things, and then if i'm like doing a recipe, then il go out and get it. But it's a little easier in new york, cause you can just like step out andnd walk to wherever.