in/on and to pick/for picking up

[jkl]

My 5 year old nephew slept in/on the school bus on his way back home.

Reminder to pick up the flip chart from the conference room.
Or

Reminder for picking up the flip chart from the conference room.

Please help me to write these senteces correctly. THANK YOU.

 

[RonBee]

Say:

My five-year-old nephew slept on the school bus. (It might seem that it should be in, but it's on.)

Remember to pick up the flip chart from the conference room.
​

~R