I have 2 heavy duty plastic bins/trays. EVERYTHING with fluids is in there. There is 1/4" of oil/fluid on the bottom of the trays. I hate going in those trays. Pull out an oily messy funnel or turkey baster, or whatever., hoses, pumps. ONE day I will clean it up. I promise. Waste more rags cleaning the stuff I need that day than the whole job 
