I wish my school had required the iPod - heck of a lot more convenient than lugging around the Davis Drug book! We needed the steth, scissors, watch, penlight, bandage tape, black ink pens, and small forceps WITH teeth. Always be sure to carry xtra batteries for your penlight, or an extra penlight. Mine was always dead, probably because I left it on too many times. Something else I found convenient for clinical was a small notebook, small enough to fit in the average scrub pocket, the best are those index card notebooks. Better than having to carry a clipboard around, or loose pieces of paper. I was always forgetting that stuff, leaving it behind in patient rooms, etc.
Other things you may need to carry in your bigger bag - bottled water, snacks, a good med/surg book for looking things up if necessary when working on care plans (Lippencotts Straight A's in Med-Surg Nursing is a good, and smallish book) and also those little pocket nursing books, they have them for every subject, at least get one on meds. Also keep paper, and extra copies of care plans or anything else required.
For us females, a good sized makeup bag with all those necessary feminine things - including deodorant, hand lotion, etc, I bought a lot of those little sample sizes at the drug store. If your scrubs are dark colored like ours were, carry a lint brush.