Out of Space: Couch Edition

How I got this was to virtually complete the ship, except one room. At this stage I only had 2 buckets. What I did then was buy an exercise bike as this generates money for you. I then took turns on the bike, sleeping, eating and cleaning the last door/vents. This way I was able to accumulate the money needed for the 5 buckets without too much pressure.

Just open the shop and buy 5 buckets which are 40 coins each unless you have a tv which gives you a discount on specific items