I've been doing mostly strength training and Tabata recently. A few months back I was enrolled in martial arts classes, so I would stretch every other day. These days, though, I have been omitting any stretching from my training. I did some stretching today after a while and found that I am a lot less flexible than I was a few months ago.

I'm not limited on my weight training in any way (i.e. I can do squats with proper form, etc.) but I think I should be more flexible nevertheless.

What do you gals or guys do for stretching? Do you stretch before or after a workout? Or on days off? How often do you need to stretch? Do you also use a foam roll? Any good routines for stretching or rolling?

All ideas will be appreciated.

Thanks.

I stretch constantly.

I rarely sit on furniture. I generally sit on the floor even at friends houses.
At home I sit on our futon/bed (VERY FIRM) when I read, watch movies, etc...
I sit on the ground when I'm outside.

I use a piece of 4' x 4" PVC pipe for a roller. I use golf and lacrosse balls for deep release work on myself.

Personally I believe that if you're doing full-range movements for as much of your body as possible, there isn't really any need to stretch.
Then again, I do martial arts which keeps me bendy anyway...

I stretch after every workout.  It's a must if you have a desk job.