Help! Any Idea how to get rid of "old" smell in suitcases??

                  

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UPDATE

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I found the answer to my question at  The Art of Doing Stuff

She says to pour a whole box of  kitty litter in the suitcase,

close the lid and leave it for a week.

Bye Bye  yucky odor

I bought this old suitcase at a thrift store.... and Love it. 

This is where I had it last week....

and this is how I changed it up after housecleaning this past week

Now I love it and all, but it has this annoying "oldish" smell that no matter what I do... it lingers.

Any ideas what might work to get rid of the smell??  

                  

****************************************

UPDATE

****************************************

I found the answer to my question at  The Art of Doing Stuff

She says to pour a whole box of  kitty litter in the suitcase,

close the lid and leave it for a week.

Bye Bye  yucky odor