The day before you work from home, remember to transfer any important files, as Fast Company points out in their guide to working from home. If you're using a different computer, sync everything over with Dropbox, email or a USB drive.
Even if you're using the same computer, or if you mostly rely on cloud services, remember to also prepare for any two-factor logins, and anything that won't work on your corporate VPN. And bring any physical documents home.
Photo by Alexas_Fotos
FC also recommends prepping your workspace the night before: Clear away distracting "home stuff" and replicate your work environment as much as possible. It's hard enough to get into your usual workday headspace when you're sitting at home. You don't want to waste the morning on making adjustments.
Set up as many of your usual office comforts as possible -- you'd be surprised how distracting it can be to not have your favourite coffee mug or headphones. And clear away your home clutter. The idea is to replicate your usual workspace for a day.
If you're using your personal computer for the day, turn that into "work mode" too: Close your usual home tabs such as your personal email, turn off any notifications you wouldn't have on your work computer, and maybe even create a different Chrome account.