is there a store that ...

[harvester]

is there a store where i can buy generic versions of the bubble bags like lowes or home depot????

[trillions of atoms]

yes, ask for micron paint screeners work great! cheep too!

[Hick]

yes, ask for micron paint screeners work great! cheep too!
I've seen the paint strainers, but do they come in different microns/thread count, like the silk screen ?.. THAT, I haven't seen, but would definately be worth looking into, if so.

[godtea]

If all you need is silk screen go to any( or look online for a) good art supply store
They should be able to set you up for less .