We have a 30ft trailer, and I am doing english paper piecing because I found that with my machine it just makes it too crowded in the camper if we are all in there.
If I know that the boy's dad will be busy 1 day and I might not have a vehicle, then I'll pack my pink Kenmore up and sew at a picnic table.
I leave an iron, cutting board/ironing board, and sewing kit in the trailer. That way I have "stuff" if I do happen to bring something with me.
Theresa