[TheForge] Keeping hammer handles tight

[Dragons Watch Forge]

I think this has gone around before but with my last HD crash I lost 
lots of good tips, so.
How do you guys keep the handles in your hammers tight?  I have let the 
hammer sit in the slack tub which keeps the head tight but does not do 
the handle any good.  I tried soaking neats foot oil into the handle at 
the head but it seemed to dry out also.  Any suggestions?  I'm in 
central Texas and everything dries up here in the summer.

Larry