I agree that planning is key. I'm getting better at the planning part. It's still the execution that's shaky
I think your idea of having snacks on hand is part of the planning. I'm trying to pack snacks, and bottles of water and "mix ins" for flavoring (I haven't been completely weaned off sugary drinks yet). I'm getting better at this, but I'm not quite there yet.
I will join in on the weekly threads, although I tried that when I was here last and quickly got lost in them
I like them, but I like the topic/question threads too -- I always learn from reading what others are doing.