I am part time in this lovely world of MSing. I do most of the same shops each month, if I can snatch them. i'm signed up with a lot of MSCs, but I tend to check the same three or four unless I see something here that prompts me to look elsewhere. Usually they're gone by that time and so I stick to my same-old-same-old.
I am often awestruck by how many shops some of you do, and especially the fat bonuses, when I have to scramble to pick up base pay in my area.
I wonder how you manage the hunt, across so many companies. Many of us sign up with over 100. How many MSCs do you typically work with in a month? Do you have a list that you run down each morning? Do you note which days to check MSC1 and which days to check MSC2, etc?