Great idea, I have used for many years products like this:

Finish Line Gear Floss sells for $6.99. The 20 inch cord comes impregnated with cleaners is a microfibre rope so is scratch resistant and picks up the dirt, there are 5 cords in a box.

Bruce
1964 4/4 Series V Comp (Megan)
1994 +8 (Maurice) tis no more
2013 M3W (Olga)