Slip Stitch patterns are easy. Only one color is used at a time, but many colors may be used in the piece. In the picture below, two colors are used and the contrast color not only slips the stitches, but has floats that show on the right side. Because the slipped stitches pop out, and stitches tend to be uneven, there are a couple of things that can be done to give professional results.
1. Work to have even tension. If the slip stitches look too large, try knitting at the tips of the needles and make sure floats are not too large. If the slip stitches look too small, work further away from the tips of the needles and make sure the floats are long enough.
2. Block the knitted pieces. Yes, get it wet and lay it out on a blocking board or on towels. Even steam blocking will help some. Blocking will flatten the work out and give it that professional look with stable stitches.
Enjoy slip stitches, they add a lot of effect for little work. Brocade vest below is available at http://www.ravelry.com/designers/margie-mitchell
Fashionable flared ribbing can look great, but there are a few tricks.
Flared ribbing involves casting on more stitches than needed, for a cuff as an example, and decreasing an inch or so before the cuff ends. The decreasing can also be done more gradually. Usually, there are more purl stitches than knit stitches to start with and the purl stitches get decreased to create the flare.
The first trick is to avoid holes when decreasing. Simply tighten up the decrease and on the next row, knit the decreased stitches a little more firmly and the flared ribbing will look flawless.
The second trick is to use a tight decrease. A ssk is usually tighter than a k2tog. If the decrease is done on the wrong side try a ssp instead of a p2tog. If the decrease uses both a knit and a purl stitch, use the decrease that leaves the knit stitch prominent; however, you can configure the decreases to take advantage of the tighter decrease.
Here is my design for a Self-Strip Cabled Shrug available on ravelry. http://www.ravelry.com/designers/margie-mitchell