Goal and options: how do you use a roku?
output answer: plug the usb stick into the side of your tv and then switch the input to whatever the usb is on.

Goal and options: How to Make Balloon Rocket Cars
output answer: To make balloon rocket cars, first gather your supplies. For the vehicle, you will need 1 corrugated sheet of cardboard or plastic; 2 plastic coffee stirrers; 1 plastic drinking straw cut into two equally sized pieces; 4 foam disks for the wheels (or cardboard cut into small circles) Tape; For the Rocket Balloon Power you'll need 1 plastic drinking straw; 1 Balloon

Goal and options: When taping adhesive foil to glass what is any easy way to make sure that the tape is firmly attached?
output answer:
Use a pencil to roll out any creases, wrinkles, or bubbles in the foil.