What I hate is when I get sucked into buying a fabric panel because it's so cute. Then you try to trim it or add borders and find it's printed crooked. I've blocked and steamed but sometimes there is no way to get it re-squared. The last one I had trouble with I finally cut off the printed border back to the white background colour and added more borders after it was squared. I try to restrain myself from looking at the panels at my LQS because the're so darn tempting.