A tip from the Titebond site

[Dave Bagwill]

"How to properly add dye to Titebond Wood Glues.

It is possible to change the color of aliphatic resin glues by using aniline-based dyes. Using a drop or two of water, work the powdered dye into a paste before adding to the glue. This helps to prevent lumps in the glue. Start by adding a small amount of the dye because a small amount can significantly alter the color. Before making your final color decision, be sure to let a sample of the dyed glue dry. When the mixtures dry they may look different from the wet state."


Well, here's one more:
"Get good results gluing end grain joints.

Although good joint design minimizes the need for gluing end grain, sometimes end grain joints are unavoidable. The strength of end grain joints can be improved if the "open" end grain is first sized. A sizing mixture may be made by mixing one part to two parts water to one part glue. Place the sizing mixture on the end grain. Let it soak in for no more than two minutes, and then continue with a regular application of glue."


http://www.titebond.com/application_tips.aspx