What's in your backpack?

I’d love to hear what people carry with them in their packs. Show and tell?

This is a good excuse for me to quickly take inventory. I don’t have a ton. Here’s the list…

2 pairs UNIQLO AIRism boxer briefs
Ultralight Patagonia thermal leggings
Prana Brion Pants
Patagonia Rock Craft shorts
Brooks running shorts
Wool & Prince Better Button-Down
Cheap 50/50 Cotton/Poly T-Shirt
Ultralight Nike pullover hoody
UNIQLO UL Down Jacket
Patagonia Houdini Wind/Rain Shell

Bedrock Syncline Sandals (w/ Injinji wool toe socks)
New Balance Minimus Trail Shoes (w/ no-show Smartwool socks)

13" Retina MacBook Pro + Charger
Apple Magic Mouse
64GB iPhone 6 Plus + Charger
Seagate 2TB Portable External HD
Canon G7x + Charger + Backup Battery
GoPro Hero4 Silver + Accessories/Mounts
1964 Triple Driver Custom In-Ear Monitors
Universal Plug Adapter
3-Plug Outlet Splitter
Headphone Splitter
SMD Ultrathin 2.5 ft. HDMI Cable
Apple AA Battery Charger (charges Magic Mouse + toothbrush batteries)

Small bag of toiletries
Sea-To-Summit Travel Clothesline
Sea-To-Summit Packable Daypack
Small carabiner (for keys, etc.)
Passport + misc. documents/credit cards
Eye mask & earplugs

I think that’s about it at the moment. Just off the top of my head, but you get the idea.