It’s easy to sort new scenes and ideas into your head when walking, or even doing some mindless chore like drying the dishes, I find.
I also find watching cartoons and anime very helpful for ideas, as well as reading comics. Often something in the story or characters will inspire me or make me rethink a scene or two, usually making them better scenes/characters overall.
Talking to trusted friends about the story helps tremendously, cause you are reminded of why this is your passion and dream again, your creativity and morale is rekindled.
Honestly, doing stuff other than comics. It's good for my spiritual, physical and mental health to not revolve my life around comics. We are made to be many things and when we function that way, we function at our best. At least I do. Plus, I feel like I am actually accomplishing something when I do that.
I get super crazy dreams and a lot of times they give me usable ideas (very rarely is the dream understandable enough to use straight up, though that's happened before)
That, and just being rested and having fresh eyes on something helps
If you see me on the forums im probably procrastinating.
I get ideas for my comic whenever I'm in the shower & right before going to bed. I keep my phone next to me and jot down anything that comes to mind. It's actually pretty annoying seeing how I'm wet in the shower & trying to sleep.
Another good thing is actually studying—studying the art of storytelling. Few things inspire me more than that—I get super focused and determined when I see how much story has eroded over the years and how much better I can be if I keep the important things in mind that I learn from studying.
Coming up with ideas tends to be more of a hindrance than a help for me. What I usually need is less ideas and more time and energy to make them usable and get them on paper.
Walking is the best way to brainstorm for me though. When I'm stuck on something, I'll find an excuse to go for a walk. And, if possible, make some poor shmuck listen to me hash out whatever I'm struggling with
I love a good daydream, just nothing to do and you let fire so many adventures for your characters in your head. I find playing games helps sometimes too, I'm currently running around in Champions Online and that's a good place to lose yourself in.
I get super crazy dreams and a lot of times they give me usable ideas
My current comic is actually based on a dream I had. I like to record some of my dreams when I first wake up because a lot of times I'm apparently a lot more creative when I'm sleeping as opposed to when I'm awake.
Walking while listening to music is my go-to when I want to brainstorm. Doing research for my stories, whether sci-fi or historical, gives me a lot of great ideas too.
And looking at creative media! Art, movies, videogames, other comics, animation: all great sources of inspiration.
Periods of silence when my mind can wander without distraction (shower, sitting at the park or bus, brainless chores...)
Scenery plays a big part, for me.
Big, spacious empty rooms, for example. I don't know how, exactly, but I suspect it's something about blank slates that get my mind pumped to fill that blank slate full of stuff. Or maybe it's just the lack of available distractions? IDK, it's like the brain waves can all clearly bounce off the walls. It begs to be filled with...anything.
There's also long trips through the countryside and staying in new places like hotel rooms. Something exhilarating about it. I'm always excitedly popping out a comic everytime I go on a trip.