brick walls feeling chilly? curious what others are doing

Hey folks, been noticing my brick house is feeling colder than usual this winter. I've heard different things about insulating brick walls—some swear by interior insulation panels, others say exterior insulation is the way to go. Honestly, I'm kinda lost here, haha. Thought I'd toss up a quick poll to see what most of you prefer or have tried:

Poll: Which insulation method do you prefer for brick homes?
- Interior insulation panels
- Exterior insulation systems
- Injected foam or blown-in insulation
- No insulation, bricks alone are fine

Feel free to share your experiences below...could use some real-world advice before I dive in.