I am going to have couple trips connecting through O'Hare. I would like to store some items (not valuables) for couple days at the AC clubs in ORD so I do not have to unnecessarily checking in baggage on multi-leg trips. Anyone know if there is locker in any of the clubs that I can use?

Also an old thread suggests calling Hilton and leaving the items there and anyone have ever tried that recently? (The thread was dated Nov 2001).

I was going to call the clubs, but they do not have phone number listed.