I just wanted to share how I keep track of gusset rows,  and everything else, for that matter. 

I have a small note book, and for each sock I work on, I give it one page. 

At the top, I write the name of the sock, Amount of CO sts, and size dpns I used. 

Next comes the ribbing, so I just write the type I am using, (twisted rib, k1-p1, etc) and how many rows, using tally marks. 

I keep track of pattern rows next.  Based on the number of rows, I write that across one line, and tally underneath.  I write how many total repeats of the pattern I did, and circle it.  I stop here, where I begin the heel.

Then comes the heel.  Most of my heels are done with heel flaps, so I track them in a set of knit and purl rows.  If I am using a variant heel, lets say eye of the partridge, I will set it up as slip knit sets and slip slip sets.  Remember, a set is the knit side and the purl side included together.

Then comes the gussets, and here I pick up the required # of stitches on both sides, remembering to keep track of the pattern rows as I knit across, (I also start a new pattern row tracking line here so I don't get confused when I knit the the second sock)

Now to decrease the gussets, I have a line that says gus dec and no dec.  I alternate tally marks after each row is knit until I have decreased back down to the original number of stitches on the needle.

Now I start another  new pattern row tracking line here for the foot portion, and make note of what pattern row I began with so I can be consistent with the second sock.  I knit the foot to length, and then begin toe decreases.

Toe decreases are written as toe dec and no dec.  I just tally the decreases until the toe is small enough to close.

Following is an example of my sheet.

Monkey Socks  CO 72 over 4 sz2.25mm dpns Twisted Rib (k1tbl, p1)  llll llll llll (15) Pattern Rows (3 rounds each)    1    2     3    4    5     6    7    8    9   10   11    lll    lll     lll    lll    lll    lll    lll    lll   lll    lll    lll Eye Partridge Heel Slip Knit Sets (10)              Slip Slip Sets (10)        llll llll                                    llll llll Turn heel (13 ea side) (this is so I get a wider heel) Pick up 21 ea side gusset sts ( knit row 1 of pattern as you go across) Knit one round (knit row 2 of pattern) Pattern Rows (during gusset decreases)     1    2     3     4     5     6    7    8    9   10   11 -start w/row 3- lll     lll     lll    lll     ll     ll     ll     ll     ll     ll     ll Start Gusset Decreases (row 3 of pattern)     Gus Dec                              No Dec     llll llll lll                            llll llll lll Foot Pattern Rows (begin w/ row 7)    1    2     3    4    5     6    7    8    9   10   11    ------start w/ row 7------- l      l     l      l      l    lll    lll     lll    lll    lll     lll    lll    lll    lll     ll     ll end with row 9         toe dec                           no dec        llll llll lll                             llll Close toe. That's all there is to it! Now knit the second sock, using this page as your reference.