About a month ago, a very good writer buddy of mine (Tristi Pinkston) had been merrily writing and then LOST her work. Software and hardware are not to be trusted. Do not assume they are your friends and will be ready to play any time you boot up your computer. I felt really bad for her.
Did her terrible loss make me assess my own software and hardware? Nope. I am just arrogant like that. Tragedy is for the Greeks and other people, certainly not for me.
I didn't back up anything during Tristi's plight.
But sometimes, the divine forces that be, sigh and take pity on my stupidity, rather than use it as a means to punish me like they normally do. I have a day job and had used my work-provided laptop to save my writing. My work determined that those of us with company owned laptops were at a risk for loss or theft and decided to back up all documents and files on a daily basis from our laptops.
I didn't think my employer wanted to save all my writing on company servers so I decided it was time to move all my writing over to my home PC. I moved everything.
Three days later when I was in the office, I turned on my computer and what did I see? The blue screen of death. All the software on my laptop crashed and burned. I lost everything.
Instead of being irritated or grumbling for now needing to rebuild all the links and email correspondence for my work, I breathed deep sighs of relief. The kind of relief one can only feel when they narrowly missed disaster and they know they don't deserve to have survived it. All my important stuff was saved. All my writing and irreplaceable stuff was safe.
I am the profiteer of lucky coincidence. But will you be if your computer flashes its blue screen of death?
The moral of this story: do not assume your flashdrive is incorruptible. Do not assume your harddrive is like a safety deposit box locked in a bank's vault. Do not assume Greeks are the only ones with tragedy.
Right now, while you're thinking about it, back up your work to two other viable save places.
You think writing that first draft is tough? Wait until you have to write that first draft twice.