If you have a Sam's or Costco in your area, you can get past the membership by using a gift card. You can also buy a gift card without a membership. Sometimes they're sticklers about it if you're there super early, because that's apparently "special members hour" or some shit, but the worst that happens is they tell you to leave.
If you can save up $15-20 for a 25lb sack of rice, it'll last about 100-150 meals, which means it's about 10-20¢ per meal. Just keep it in a plastic container to keep bugs out.
Get some cheap frozen vegetables and bulk, dried beans and you can eat pretty good for like a dollar per day.
Honestly it's kinda cruel that buying in bulk saves a ton of money, but the people that need it most can't afford to.
It's crazy how efficient LEDs are. They are a little bit more expensive but you'll save it on your energy bill over time and you'll have to replace them less.
People also don't realize how much of their energy bill is heat & air conditioning. If you don't have pets, turn your heat off or way down while you're at work. Just make sure it stays above freezing and above the dewpoint. If you can get any smart thermostat for cheap, they'll save you a ton of money over the long run if you're like me and constantly forget to set the temperature before you leave for work.
Also, thick drapes work wonders at keeping the cold out of cheap windows. You can get them and the hardware to hang them pretty cheap from goodwill. You can also wrap them in Saran wrap if you really want to keep the cold out. They sell kits, but painters tape and a cling film are way cheaper if you can hide them behind some drapes.
https://youtu.be/tbq6uZ9Y0nQ?si=m1Z9kp21PTQFhGnx