What are your go to snacks for travel!? Need decent snacks for airplane travel but also interested in car snacks!

I work from home and have diagnosed ADHD and I am currently not medicated. I am kicking around the idea of going back on meds but what works for me now is:
Exercise before 10am, clears the head and quites the noise of I should work out!
Identify your most productive hours and don't try to fight the hours where you really struggle!
Podcasts have to be own for deep work! True crime is such a an easy background noise.
Don't drink too much coffee and make sure you are hydrated!
Lists upon lists upon lists!

My 4 year old is really struggling with the bedtime transition. Friends swear by a weighted blanket for kids. How do I use the blanket for the best results at bedtime?