THE HEEL
the heel is done over half of the total stitches, beginning with the first stitch of the round. It is knit in stockinette for as many rows as you have stitches

TURNING THE HEEL
the stitches on the heel are divided into three equal portions. in every knit row you are knitting together the last stitch
of the middle portion with the first stitch of the outside right. on the return row - you are again knitting together the end stitch of the middle section with the first stitch of the outside part. (for example with 24 stitches = 3 x 8 stitches. knit 15 stitches, knit together the 16&17th stitches. Turn (slip the first stitch) purl 6, then purl 2 tog, turn and continue this manner keeping the total of 8 stitches in the middle. when you have used up all of the outer thirds - you are done.

GUSSET
divide the heel on to two needle and pick up stitches along the edge of the heel flap, so that you can knit around. Now you can decrease on the right and left sides of the heel flaps at the instep.

DECREASING THE GUSSET
Now, knitting around , with the first and second stitches of the gusset knit together (SSK or K2tog) every other row
until you are back to the original number of stitches.

TOE SHAPING
Dividing your stitches into four equal numbers, then look at the top and the bottom as two equal parts. you will be shaping on the 2nd and 3rd stitches from the end of the needle. For the first 1/3 of the decreases, decrease every third row. For the middle third of the decreases, decrease every other row, then decrease every row until you are to 4 or 6 remaining stitches, then pull through the working yarn and finish.

Actually, more of a philosophy than a real pattern.