Hey, that's a great tip on the flax seed oil. And I forgot to mention Naptha or Napthene dry-cleaning solvent (AKA 'lighter fluid' or Coleman fuel) as an ideal stock, gun and general degreasing/cleaning solvent. It is very flammable, so use it only outside and let any cloths or papers used dry thoroughly before disposing or washing.
Speaking of flammable, any linseed oilis known to be a spontaneous combustion threat on cloth or paper - even steel wool. Dispose of any such waste materials accordingly. One way is to put it in a small steel sealed can made for stowing oily waste until trash day. If you can't do that, you could leave it outdoors in a bucket of water. Seriously, look it up yourself - hard to believe but true.
http://en.wikipedia.org/wiki/Linseed_oil