Do you know the proper name for this?
The proper name for it is "Potting Tidy".
I love having a potting tidy because it makes the whole business of potting up plants neater than say, laying out some newspapers and dumping potting soil on the papers.
Really, potting soil on newspapers? How very uncivilized. You are gardening, not trying to make a mess. Do the right thing and get yourself a potting tidy.
A potting tidy makes potting up plants indoors a positively pleasant proposition.
Not to mention how fun it is to say "potting tidy" around other gardeners and it is especially fun to throw out the phase "potting today" when talking with non-gardeners. Try it. You'll see.
Potting tidy -- as much fun to say as it is to have.