I hate to say it, but the only way I've found to really reduce my electric bill was to replace the heat pump.
Still, there are some things you can do that can have a small effect and can make you more comfortable. I've found insulated drapes to be very helpful with keeping my home more comfortable in winter, especially the north-facing windows. But if you don't already have them, it would cost you money right now. The ones I have are from Target (their store brand and a pair from Eclipse), and I think Sears carries Eclipse also. Not really expensive, but not free either.
I used to use a big plastic dropcloth over my balcony door to lessen the draft there. I would fold it in half (otherwise it was way too big) and tape it to the wall above the door area with painter's tape. It doesn't look pretty but helps keep that part of the room warmer. This year I went out and bought a clear shower-stall shower curtain and taped that up.
If you have any holes in exterior walls or in the ceiling (like nail holes where there used to be pictures or hooks), tape over them. They let hot air out and cold air in. Same with electrical outlets in exterior walls. For longer term, you can buy foam insulating things that go around outlets and light switches on exterior walls (under the face plates) that stop the draft.
Unplug electric things that have remote controls (like a DVD player or stereo) if you aren't using them. Also do not leave your phone charger plugged in unless you're actually charging the phone. If you have your own water heater, check the setting and turn it down to a more efficient setting if necessary. Only use the washing machine and dishwasher when they're full, and use energy-saving settings if you don't do that already. And of course turn out the lights when you're not in the room and don't stand with the refrigerator door open.
As for the credit card, my bill was higher than usual last month due to Christmas shopping, and I didn't get a bonus last year which I usually use to cover the extra expense. And then in January my bike repair was finally finished and that cost nearly $500. So I've been on austerity since the start of the year. I just don't go shopping. No trips to the mall are allowed. It's been painful, because I usually like to buy winter clothes in January since you can score great deals with the post-holiday sales. But it's necessary, so I'm finding other things to do on weekends (like cleaning out closets and taking stuff to Good Will).
For groceries, stick to produce that's on sale if you can.
Depending on how cold it is, you might be able to save gas by not turning on the heat in the car. My commute is only 4 miles so my car doesn't warm up before I get to work, so a few years ago I got a nice fleece blanket that I keep in the car, and I use it as a lap blanket while I drive. It keeps me comfortable unless the temps are really low.
As for turning the heat down or off, bear in mind that you don't want it to get so cold indoors that the pipes will freeze. My condo association recommends setting the heat no lower than 50 degrees.
- Gray 2010 carbon WSD road bike, Rivet Independence saddle
- Red hardtail 26" aluminum mountain bike, Bontrager Evoke WSD saddle
- Royal blue 2018 aluminum gravel bike, Rivet Pearl saddle
Gone but not forgotten:
- Silver 2003 aluminum road bike
- Two awesome worn out Juliana saddles