Does anyone remember the story of Joshua and the Gibeonites from Joshua 9? The Gibeonites were a people living in the land of Canaan who deceived Joshua & Co. into making a treaty with them. The Gibeonites were afraid of Israel because of all that God had been doing for them and sent a group of men all dressed down (they put on old clothes, brought moldy food, etc.) so that Joshua would think they had travelled a long distance. You see, Israel was allowed to make treaties with peoples from far away lands, just not from this in their own "back yard". To make a somewhat long story short, Israel made the treaty with the Gibeonites and then found out that they were deceived and realized the mistake they had made.
Here is the key. The people of Israel did not pray for God's guidance before they made their decision to make a pact with the Gibeonites. Aha!
Joshua 9:14 Then the men of Israel took some of their provisions, but they did not ask counsel of the Lord. 15 So Joshua made peace with them, and made a covenant with them to let them live; and the rulers of the congregation swore to them.
The one thing to note is that God did not reprimand Israel for their mistake. In the following chapter we see more victories by the people of Israel. While their decision wasn't the smartest one they could have made and it wasn't God's intent, God did not punish them for not asking His opinion on the matter. I believe God gave them grace because while they forgot to consult God, they weren't willfully disobedient. After all, they were deceived by the Gibeonites.
When was the last time you entered into an agreement, a ministry, a job, etc,, without praying to God for guidance? We all have done it. We just remember in the future that asking for God's advice might keep us out of "trouble" and help all of us busy ladies be less overcommitted! :)