LOL. I have, but thanks. As is typical in this forum, I think that you are looking for a simple answer to a complex question here. However, there are few easy answers in Economics. Read some Milton Friedman sometime. Anyway, to your assertation...yes, spending does have something to do with economic stability, but it is a trailing indicator at best.
The real problem we have right now is a confluence of poor decisions, poor fiscal policy, and poor oversight. For years the government has been putting increasing pressure on banks to lend money to people that were not qualified to assume such debt. Anybody ever hear of a moral hazard? Read Adam Smith? No? Ok, thanks. Banks did this, grudgingly at first, but then learned that all of this sub-prime debt created an after market secondary source of income in the form of Mortgage backed securities. So long as someone was willing to buy the debt, the banks didnt really care about the loans.
To make things even worse, companies began to sell derivitives on these MBS, adding one more layer to this Ponzi Scheme.Now that the banks have recieved their TARP funds they are doing exactly the most predictable thing they could(Moral hazard? Seriously...you guys have never heard of it? Ok, thanks). They are liquidating what bad debt they have left, and holding onto the money like grim death because they know that uber inflation is coming and they would loose their shirts again if they loaned it out the way they were.
Now here is the problem. Without affordable credit, innovation stalls. Expantion of existing business is made FAR more difficult, and bridge loans are nearly impossible to get. What is worse is the effect all this has had on private investment. Many of these would be investors lost a ton in the MBS game, and have tightened their belts (and purse strings ) because of it. Inflation also affects their decision making, because any return on investment will be reduced if their is substantial inflation. The government cant possibly sell enough t-bills to cover TARP, much less ObamaCare if it goes through, so the FED will monitize it, and inflation will ensue because of it. Doubly so since the velocity is so low right now.
In short, yes, the fact that all of us are not spending does not help the economy, it is really the issue of job creation and capital investment that is killing it.