It totally depends. If I need to get something done, I can sew for hours on the same project. Do I only work on one project at a time.... never. The last few days I quilted 4 lap size quilts, machine sewed binding on 3 of them. Worked on hand sewing part of binding on two others and started a twin size quilt that will be making its way to Romania. When I set up the machine for quilting I will sometimes work on several. Same with set up for binding with the walking foot. There are days I spend 5 -6 hours on one project and others where I spend 30 min each on several or no time at all on any.
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My newest Grandson, Caleb Austin, was born May 29th. I am now Grandma to 4 precious babies. I am so blessed!!!!