Feel a bit silly asking, but says don't use it on acrylic plastics - what sort of things (typically) around a home would be acrylic plastic?!! This is the spray that is left on to dry, not the clear anti-bac stuff. Have got it to do door handles/phone/loo etc - what do you use to clean your computer keyboard? Obviously won't spray anti-bac on mine!, but wondered if this spray that you leave to dry (used v sparingly) would be good - any advice on typical acrylic plastics and/or what you use to de-bac your computer keyboard greatly appreciated! Thanks.