My orange cat lit her tail on fire once... so glad I was there to put it out because she had NO idea. Sweet Mousie. I miss her.
I would suggest lighting a candle when you are working, since they are already by your work space. I like to light mine while I'm at my desk. It's hot now though and I always have the fan on, so I've been using them less because they don't burn very well with a breeze on them.
But yeah. When you know you are going to be at your work station for a while, I would light one
If you need to get up for any length of time, like to make something to eat, blow it out so your kitty doesn't get too curious.
As far as forgetting, just put it close to where your line of vision is. Like, if you're working on an iPad or something but it above that, so it's always in your peripheral. Hard to forget when it's in your face