Rather than buying a standard briefcase, I figured Why not put my laser to use and build a custom briefcase? But better yet, lets install a solar panel and battery bank for all my mobile devices. I needed a way to carry my paperwork, ipad, phone, etc. So I used my Epilog laser engraver to cut out 13 plies of oak hardwood and glued them together, leaving room for a custom 12 volt 1.8 amp (22 watt) solar panel to be built into the front. I used the Satetchi 10,000 mah battery bank and a USB car adapter to convert from DC to AC. This battery can charge my phone over 5 full times. I can charge this bad boy up in about 4 hours in the sun, and never have to worry about device death again.