It is Spring cleaning day, and SpongeBob works diligently on his house. When he takes out his garbage, Patrick reprimends him for letting go of all these sentimental items. After pondering the concept, SpongeBob agrees and fights the garbage truck's claw for his trash. The next day at the Krusty Krab, SpongeBob begins collecting random items such as mayo, sweat, and patty grease. Then he starts hoarding them inside his house. But he runs out of room and starts piling it in his front yard. But Squidward starts to get annoyed by it, and tells him that he has to throw away his "junk". SpongeBob tells him that he can't because it holds precious memories. Squidward then calls the sanitation police. They condemn the house because it is filled with junk and that he is a "threat to public health". They tell him he has to evacuate the pineapple immediately. Squidward is happy until they condemn his house for being filled with SpongeBob's "junk". When SpongeBob asks the police if there is anything he can do they tell him his choices, they tell him he can evacuate the pineapple or throw away his "junk". SpongeBob decides to throw them away, but he takes pictures of everything first. Squidward is then happy again and plans to go back to bed. But he discovers that SpongeBob took so many pictures that he put some of his pictures in Squidward's house, without Squidward's permission. The episode ends when Patrick says "Nice Dress" with Squidward yelling "IT'S A NIGHTSHIRT!".
- Running Gag: Someone comments about Squidward's night shirt being a dress, only to be corrected.
- One of the things that can be seen in the pile of garbage at Patrick's house is a table from the Krusty Krab.
- This is one of the occasions where a House Fancy magazine is seen. This time, SpongeBob owns it, hinting that he also likes it, unless he is just keeping everything he sees.
- This episode is similar to many "hoarder" shows. The only major differences are no depressing music, interlude cards, or announcers.
- Pete the rock reappears in "The Googly Artiste".
- Sentimental value is a non-monetary value placed on an item by its owner. The episode's title is based on this phrase.
- After the Sanitation Police leave, "Alfred the Lightbulb" is gone.