I use Featherweights for everything except chocolate work and royal icing...for those I use plastic disosables. Once in a while when I'm feeling lazy , I'll use the disposables for my BC but I try to keep that to a minimum.
Sugar, spice, and everything nice; That's what cakes are made of!
Ziploc freezer bags for multiple colors and tip changes. Parchment for color and single tip usage. I only use my Featherweights for white with multiple refills and multiple tips. I hate to wash anything with BC so that's just one less thing to clean.