Text all your previous clients and anyone on your database with something along the lines of...
I have an unexpected free slot on Tuesday at 3pm so would like to offer a 25% discount/£10 off to anyone who wants an xxxxx! First come, first served - text me back asap if you are interested!
Keeping you busy!
Business & management coach, mentor, trainer, author, speaker, social entrepreneur, (and chief pot and bottle washer!)