Don't bother with the fiberglass as folks have said.

When I do bother with it, I use "finish cure" 20min epoxy I get at my local hobby shop. It smells like epoxy pre-thinned with the right amount of alcohol. It's real thin and flows well though the cloth.

I've used the CA method, it works well, but does let off some nasty fumes. And the CA isn't sandable like epoxy is. Also, you can't quite get rid of the weave pattern with CA with out filler or something aferwards. 99% of the time I don't care about the weave pattern anyway.