I take all my alchemy materials and have a rondo party. Plenty of space left in the squirrel since I grind one or two mobs at a time
Oh, and I've also been known to
take naps while waiting*, but this is not recommended, as you tend to miss the unique and/or get your mutt killed/horse killed & waste pots, possibly die yourself.
EDIT: * = falling asleep, ftw!