I use them too. Rather than mess about with dunking, rinsing etc. I pre-spray fabric as per usual. Most areas will then only need to be agitated with the cloth. For heavy soiling though, I will then spray the cloth with my preferred solution before using it for agitation. I do launder mine though, they go in with the terry towels. Never use Fabric Conditioner when laundering towels, cloths, pads etc.
Shaun
I've never tried or even seen the blue and white striped ones, but I feel that the green ones are better than the blue or yellow ones from Unger.
Safe and happy cleaning

Ken
PS I find regular Microfibre cloths to be a little small in the hand. At the NEC, Julie Roberts (Chemspec-Europe) said she'd look into sourcing some larger ones.