I only read some of the responses, so I apologize if someone already added this tip:
When you get to the US, buy a Sunday newspaper with the "Coupon section" and look for a JoAnn's ad. I don't think they have one every week, but they are fairly frequent.
I wouldn't have a 12 1?2" square ruler at all, if my Mom hadn't won one at a quilt show. Thanks Mom!