We are loving this new Interchangeable Needle Case. It has a built in pocket for a scissors (that's included!). 
Lots of pockets and each needle pocket is labeled so you'll never lose track of which size you're using. A leather strap keeps it all safe.

Closed: 7.5" w x 8" h x 1" d
Open: 21" w x 10.5" h x .5" d

Ring carabiner with 3 lotus stitch markers
Scissors included that fit snuggly in pocket
Fits needle sizes (US2 - 17)