Answer:
Some will use me, others not. Some have remembered, others forgot. For profit or gain, I'm used expertly. I can't be picked off the ground or tossed into the sea. What am I?
If you lose me, you may cause people around you to lose me too. What am I?
So cold damp and dark I am. To stay you would refrain yet those who occupy me do never complain.
I go inside boots and outside shoes.
You have to travel far before you turn it over. What is it?
It weighs next to nothing but no one can hold it for long. What is it?
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic