I like to use Schema Browser because my own doesn't contain any objects, and the tables, procedures... that I want to see belong to other schemas. Easier than navigating down to Other Users in the connection tree. I'll often use the Schema filter to narrow it down even further.
But it doesn't seem to save my filter condition for use the next time I start up SQL Developer. Is there a way to make it save the filter between sessions? Or should this be an enhancement request?