I did a one day trip with my mom awhile back. We covered NW PA and were on the border of Ohio for one or two shops. We met lovely people, visited shops we'd never find on our own, and came home with some wonderfully different fabrics. (Interesting how shop owner's tastes reflect their choices when buying fabric.
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You'll have such a good time. We had games while on the bus and some were conversation starters and 'get to know you' things. It was all good. Do have a budget. You might not stick to it, but have a $ amount that you know you can handle. Very tempting things as all the shops spruce up for the bus trips! Enjoy!!