old 100's

[bicyclekick]

For the last year or two whenever I get an old 100 dollar bill I keep it separate and have been just putting them in my safety deposit box. I have something like 40 of them and my girlfriend thinks I'm a moron and should either invest them or do something with them as 'just holding them doesn't do anything.'

I agree with her to an extent and think maybe I should do something...but they're just so sexy looking which makes me want to just hold onto them.

BBV, what should I do?