Felicia went to all the trouble of finding somewhere that actually puts bags of cash in sacks with a dollar sign on them.
That is how bored she's got.
Now, did she get the sacks first, or steal the stuff and then get the sacks to put her loot in after, just so her apartment didn't look too run-down?

(Meanwhile, kudos at least to Slott for not just calling her "Cat Spider" or "Spider Cat" and calling it a day.)