input question: Fill up the market ink cartridge.

output answer: Hold the ink cartridge over a piece of paper towel with your hand. Using an eyedropper slowly drip the ink into the cartridge until the felt is wet. Stop when the ink starts to drip out of the other end onto the paper towel.

input question: How to open a post on Reddit

output answer: Find the post you wish to open, and left click on the title.

input question: To roll out dough without a rolling pin.

output answer:
Use a wine bottle. Empty or full, remove the label and scrape off any residue, then wash the outside of the bottle. You can also simply place some wax paper or plastic wrap on top of your dough and roll right with the label on the bottle.