Roman Military belt question

[Tarbicus]

There's an interesting comment from Aurelian when advising a wannabe tribune:

Their arms shall be kept burnished, their implements bright, and their boots stout. Let old uniforms be replaced by new. Let them keep their pay in their belts and not spend it in public-houses. 7 Let them wear their collars, arm-rings,28 and finger-rings.

http://penelope.uchicago.edu/Thayer/E/R ... an/1*.html
(copy and paste the entire address)

Even though this would be 3rd C, is it a clue that the military belt also served as a money belt? I've thought before that the 'quilted' rectangles at the top of earlier aprons may be a pouch for valuables, and even though that may be different, the day to day of a soldier and his attachment to his belt might support the idea that the belt was more than purely decorative and bling.

Is there an alternative translation to the Aurelian quote above that may make "in" something else?