Dom and Jem are going on a trip, but Dom has too much in his bag! Join the two bears in this phonics reading book.. Part of Reading Stars Phonics - our structured programme of fully decodable phonics readers to support the teaching of phonics using the UK Government's Letters and Sounds programme - Too Much Stuff! is a Phase 4 book. It introduces CCVCC and CCCVCC words and the common exception words said, have, so, do, some, were, when, out, what.