**Update: This achievement has been reported to be glitched for some players. The achievement counter is not going up and being stuck at certain % of completion. It is not known what causes the glitch to happen but apparently Gearbox knows of it and is working on a solution/patch.**
Crazy Earl is located on the space ship Sanctuary in the Cargo Bay (bottom floor of the ship)
Simply buy 20 cosmetic items form Crazy Earl.
Any items bought directly from Crazy Earl will count towards this achievement such as the heads and skins. Just fill in the rest of the achievement with filler Room Decorations after you've bought the cosmetics you actually wanted.
Room Decorations are the cheapest option.
25 Eridium - Bandit Tire
25 Eridium - Pandoracorn
35 Eridium - Troy Graffiti
35 Eridium - Tyreen Graffiti
45 Eridium - Skag Skull
20 Eridium - Life Preserver
20 Eridium - Bug Zapper
20 Eridium - Buzzsaw Blade
20 Eridium - Jakobs Poster
25 Eridium - Trophy Fish
25 Eridium - Salvation (sign)
25 Eridium - Holy (sign)
45 Eridium - HBC Poster 4
45 Eridium - HBC Poster 5
35 Eridium - Vegan (sign)
35 Eridium - Live Streaming (sign)
20 Eridium - Safety First (sign)
20 Eridium - Hard Hat (sign)
20 Eridium - Dip Road (sign)
1 Eridium - The Big 3 (sign)
______________________________________
= 541 Eridium Total with the cheapest options of room decorations.