Ethan Mollick's recommendations on which AI models to use depending on your usage. Free LLM models are OK for some uses, but he notes where the limitations mean that you'll get better results with paid models.
For free image generation, I agree that Gemini is probably the best all-purpose free tool.
Julie Dirksen shares examples of the disconnect between what we know we should do and what are physical reality tells us. Delayed or absent feedback makes behavior change hard. Making progress, consequences, or feedback more visible and vivid can help.
"That’s interesting, because I’ve seen a consistent thread in most behavior change challenges: delayed or absent feedback. What it comes down to is that your intellectual knowledge is telling you one thing, but your physical environment is telling you something else. This has important implications for learning design. If we can’t just rely on intellectual knowledge, we need to give people the feeling of consequences or outcomes. That influences design choices—how visceral the experience is, how vivid the consequences are, and what kind of feedback people get."