I also wouldn't cut the yarn, but simply increase the number of stitches at each end.
LOL! It's not just novices that don't enjoy weaving/sewing! I don't mind it, but I do reduce the number of tails, and I design to reduce seams. (I use double needle bind off for shoulders, knit in my plackets and necklines, and knit in-the-round to avoid side seams. Drop sleeves are easy Easy EASY to sew in, and I find the more relaxed fit tends to flatter more body types.
Have to admit there are times when I'm sick of designing/thinking/planning/charting, and just want a mindless chore... that's when I pick up a project and weave! But by the last one I'm absolutely sick of it and ready to unleash my creative mind once again!