Possible Clues:

• Old-school laundry detergent
• Erstwhile detergent that pledged 'white white washes without red hands'
• Old brand that promised 'white white washes without red hands'
• Detergent with a glass in every box, long ago
• 'Eazy-___-It' (double-platinum album by Eazy-E)
• Old Procter & Gamble detergent
• Old detergent company that often enclosed a free drinking glass in each box
• Old washday choice
• Detergent whose boxes had dinnerware
• Dash competitor