please do!! And just start writing without thinking that you have to write something good, or something that makes sense. You will be surprised what sometimes happens - or you get a grocery list lol
Here are your weekend options

15 min 3 prompt exercise
https://steemit.com/freewrite/@mariannewest/weekend-freewrite-12-30-2017-part-1-the-first-sentence

Or single prompt option
https://steemit.com/freewrite/@mariannewest/weekend-freewrite-12-20-2017-single-prompt-option