It's interesting to me what performers focus on and on the flip side neglect. "I bought this big box and made it look all shiny and nice but I need a cloth to hold in front of me... I know i will use this bed sheet"".
There is actually nothing wrong with using a bed sheet but at least frame it up a bit with some color on the sides to give it some definition and stand out a bit. All your props should look like you put some thought into them even if you didn't. This goes for costuming as well. It doesn't take much to make off the rack look like custom made. Something sparkly here, a little bias tape there and VIOLA, you look like a performer!
Sometimes when you stare too much at the big picture you miss the little details.