Carl the Collector

The Plushie Collection/The Bouncy Ball Collection

The Fake Mustache Collection/The Lint Dinosaur Collection

Lemons!/The Butterfly Collection

Whole Lotta Lotta/Leaf it to Carl

The Tool Collection/The Stick Collection

The Fall/The Word Collection

The Remote Control Collection/The Super Blue Moon Sleepover

A Forrest of Plans/The Marble Collection

The Magic Trick Collection/Listen Coach

The Sticker Collection/The Baby Stuff Collection

The Puffball Collection/The Bottle Cap Collection

A Wiggle Waggle Worries/The Pine Cone Collection

The Autograph Collection/the Rope Collection

A Collection to Get Rid Of; The Button Collection

Rhythm Blues/Giving Up the Ship

Twin Sister Hamster Sitters Incorporated/The Sneaker Collection

The Gratitude Collection/The Pet Rock Collection

The Artifact Collection/Mothership Day

The Lost Yo-Yo/Rainy Day

A New Friend/Lotta the Copycat

The Potato Collection/Nico and the Nutty Buddies

The Green Piece/The Fuzzyworld Book of Records

A Fuzzytown Halloween

The Crayonverters Collection/Lotta's New Instrument

The Meltdown/Carl's Cast

The Sweater Collection/New Bus Stop

Show And Smell/The Campfire Conundrum