I usually take my Singer 221 Featherweight for class/retreat/workshop if I don't need any bells or whistles. For straight stitching, it's the best. To have some zigzag/decorative stitches I had a Bernette for class/retreat/workshops. Then I won a Bernina 240, so if I need more than just a straight stitch, the 240 is my class machine. If I go on retreat, I usually take both the 221 and 240, just in case. My home machine is a Bernina 440, which I don't take out of the house.