If I may suggest a building tip...
I too bought a big bottle of Tightbond. But it can be unwieldly to work with. So I bought the smallest bottle of glue I could find. Like 1 or 2 oz bottle. You know the ones that you'd buy a kid..... Then I'd refill it from the big bottle as needed.
Oh.. here are the brushes I speak of..
http://www3.towerhobbies.com/cgi-bin...&I=LXK361&P=ML
Tightbond, Elmers wood glue.. They'll wash out of these brushes with water. (as long as the glue hasn't dried.) Something like this will help you....