I work on 1 project at a time, from start to finish.
I usually have a couple patterns on my desk to check on fabric
to see what I may need to purchase at the next LQS sale.
This way I know ahead of time what fabric I may need to purchase so I can take advantage of sales. I can check my stash to see what fabrics I can use for the quilt. This also gives me time to think through a pattern and decide if I really want to make this quilt or how I may want to make any changes to the
quilt top. Working on one project at a time keeps the clutter down in my sewing room as well.