This is great for those that go on weekend road trips or long vacations. Why not (if you do not already) get a journal lined or a blank page (sketchbook) and write (and or) draw your adventures. This will help keep all the tools you need with you and right at hand! Pen, Pencil, eraser, glue stick or tape, some colored pens, pencils or markers to color in your doodles. Even a pocket for an extra memory card for your phone or camera as well as USB drive.
I have and usually use a Vaults locking Pencil box like this one
my problem is…I don’t have the room for the book (unless maybe its one of the smallest moleskine ones
Here’s a larger sized one they call a medicine case which oddly enough I believe was cheaper than the pencil case! Here’s a locking Clipboard which may be of some help if you want to draw or write when there’s nothing to lean on There’s also a ‘wooden’ sketch box I came across but sadly they don’t show what the inside is like this is where the idea came.