In Threads #131, then Senior Editor Jennifer Sauer, says to “consider jersey’s care instructions, then disregard them and start experimenting.  The aim is to machine wash and dry your finished creation,”  I washed a 4×4 piece of my 100% rayon jersey and it did shrink quite a bit.  So I made a shirt without washing it and plan to dry clean the garment.  However, I have more of this fabric and would like to use it for a child’s dress.  Advice on washing 100% rayon?  Thank you!