I have long desired to knit myself some article of clothing but until recently have never had the patience to actually do so. This shirt was born out of boredom and designed out of laziness, as it is probably the most ridiculously easy thing to make. It is knit on circular needles, which are extremely impressive looking, but secretly the lazy lady's tool of choice because all you have to do is keep knitting and knitting and knitting and you end up with a lovely tube of stockinette stitch. So if you're feeling that odd combination of lazy and productive that I feel 99% of the time, then try out this super pattern and let me know how it goes.
29" size 7 circular needle
3 balls of Lily Sugar'n Cream
(For a size small)
Cast on 120
Rows 1-4: Knit 2 purl 2 rib
Rows 4+: Knit
Continue to knit until piece measures approximately 12", or whatever your desired length is.
Next 3 rows: knit 2 purl 2 rib
Last row: Bind off in rib, leaving 8 stitches
Transfer last 8 stitches onto straight needles. Stockinette stitch until strap is desired length. Bind off and sew strap to back wherever you've chosen to put it. (If you don't want strap to curl, use garter stitch instead of stockinette)
That's pretty much it. There are lots of variations you could make to this, so play around with it if you like. For instance, if you'd rather a true tube top, just leave out the strap.