I have bowls (with lids) I use just for my royal icing and to color icing. I typically only work with one consistency, unless I’m doing something special. i make all my icings, and if necessary different consistencies all at once and load my bags. If I don’t need the color right away, I cover them with plastic wrap and press into the icing and then out the lid on top. Royal icing takes a lot of practice and planning. There is also a lot of waste and clean up. There is just something about decorating that is special that makes all the planning, work, time and expense. Let’s face it is an expensive hobby.