Where do you guys Store your Data (Checkpoints etc) while training on Kaggle, Colab

Hello Guys,

where, how do you store, download/upload your files to while training your Models in the Cloud (Kaggle, Colab)?
Im currently using Google Cloud Storage, but the 300 free USD Bonus is simply used up immediately just for Storing the Checkpoints. I bought 100GB Gdrive Storage, but thats just not enough if you use Colab Pro and you can train multiple Models at once.

Ty in advcanded for your suggestions