Looks in bag..... damn.... I'm a packrat.....

Backpack:
Dell Laptop
Apple iPad
Dell AC Adapter
Bose QC15 w/ 4 Rechargable AAA Batteries and Backup Ear Buds
12V Cigarette Lighter to AC and USB Adapter
TSA Ziploc "Kippie Bag"
Ziploc Bag w/ Pair of Boxers and Socks
Plastic Cutlery Kit
Small Pack of Baby Wipes
Small Medical Bag (Ibuprofen, Allergy Medication, Eyemask, Spare Contact Lenses)
Lots and Lots of ID Badges
Travel Docs (As Needed)
Amenity Bag*


* Items in amenity bag
Apple Lightning Cable
Apple Dock Cable
Apple 3W AC Adapter
USB AC Adapter
MicroUSB to USB Cable
C13 to 5-15 Adapter
Universal Power Adapter
2500 MW Battery (Emergency Device Power)
Dell 12V Cigarette Lighter Adapter
USB to Gigabit Ethernet Adapter
5' CAT5e Patch Cable
Samsung Galaxy S3 Phone
AT&T Elevate Hotspot
Misc SIM Adapters
2 Paperclips (Universal MacGuyver Tool)
1 Large Binder Clip (To Close Hotel Curtains)
Pack of Post-Its
Pen
Sharpie

Strangely, it's not that heavy. Lots of small items. Only big bulky item is the Dell Laptop.