What are some energy saving tips?

I know the usual stuff, set your thermostat to 76 degrees in the winter, don’t run the central air conditioner too much in the summer, etc.

I have recently been trying to chop back on unnecessary spending to keep our biweekly bills lower. I’m trying to save up for a new car at the end of the year and every little bit helps. One of the suggestions I always see on money saving guides- right after they say to stop spending $6 on a latte every afternoon (that has never been an issue for me)- is the recommendation that you chop down your heating and cooling bill. I know the usual stuff, set your thermostat to 76 degrees in the winter, don’t run the central air conditioner too much in the summer, etc. I’m looking for substantial savings, however I’m not in a position to buy a new oil furnace and central a/c with a fantastic SEER (Seasonal Energy Efficiency Ratio) rating- I always see that on the suggestions, even though I don’t have the money for that right now and our new oil furnace and central a/c toil great! I’m looking for cost-effective energy saving tips. Is there any sort of supplementary heating and cooling that I can install to make it a little smoother? Are there air filters or oil furnace filters that make airflow more efficient? I’m just looking to save some money. What about smart thermostats? I keep seeing people explaining that their programmable thermostat has saved them a lot of money on their biweekly heating and cooling bill. Is there any truth to that? Do you have a smart thermostat? Are smart thermostats self-explanatory to use? I adore any advice I can get! Thanks.

Heat pump service