Anyone who has played cash games for more than a week, knows all about swing... specifically though, I'm talking about very short term swing... swing within any given session swing.

For the last few days I have built my stack up in the first 10-20 minutes only to watch it dwindle away in the next 20-30. Some times I will build it back up for a second time, and think I've got the table wired so I'll stick around just to watch my stack shrink back down to it's original size or smaller. Then I am forced to leave the table because of time constraints or possibly just out of pure frustration.

Other days I have simply told myself, self... "If I get up $x, I'm done for the day, and believe me x is a modest number, playing 5/10 I may say $5. And although this seems to work ok, I feel like I'm missing out on a lot of potential winnings.

Is this just a matter of too much variance in my game? Maybe my game is too transparent and everyone picks up on my habits after the first few minutes.

Has anyone else experienced this same thing? If so, how do you approach it?

I'm very curious as to how others approach their daily time at the tables...
Do you set a time limit?
Do you set a winning limit? (this just makes no sense to me... but I've done it, and it seems to work)
Do you set a loss limit?(There have been days when I should have done this)

Thanks