When a reader asks for tips on the cheapest way to do this or that around town, we like to open it up to everyone. There are always a few of you with some great ideas on throwing that cheap dance party, and all the neighborly helpfulness makes everyone feel good. Well, today, we came across a request for cheap services we couldn’t resist, and it wasn’t even directed here. FiPS sent out a call from a reader looking for the cheapest dry-cleaners in Park Slope: “I’m broke, but I don’t want to be dirty! Any ideas?” The dirty brokester’s call has gone unanswered so far, so we put it to you to help her out: Any suggestions for cheap dry-cleaners in the Slope? Comment away.