I've been asked to paint a very large garage/workshop floor this weekend. Not something I normaly do and kind of regret saying I would do it. My question is whats the best way to attack it. All the paint and equipment is being supplied, I have been assured that it is the right and best stuff for the job. The floor at present is painted concrete with lots of grime on it, it has also started to flake. I have told them that any quick fix will flake but they are happy and will keep paying me to reapply in the future should this happen. I can only get into do the job on Sat afternoon and Sunday day as the shop is used all other times. My plan was to wash and clean the floor Sat, painting Sunday, hopefully it would be dry for Monday am. Any tips or advise welcome, sorry for the long post!!