On work days I have: Targus Backpack Laptop Computer (Dell Latitude E6410, i7 620 with 8 GB RAM, NVidia Quadro, 14" IPS screen) For audio: Zen MP3 Player, Yuin PK3 earbuds, HifiMan RE0 IEMs, Fiio E5 headphone amp, iBasso D10 USB DAC, and a short 3mm cable. USB flash drives: 8 GB and 16 GB. Logi...