Follow Roberta's advice and you'll have plenty of healthy worms. Also try and keep them in a cool, dark place and remember not to overwater them. Just keep the bedding moist.

On a side note : my girlfriend keeps her leftover worms in the fridge between trips and they usually last a month or so before going bad.

Just remember to mark them so your other half dosn't open it thinking it's leftover chinese takeout. YEIKES

Tight Lines BB