Thanks for your quick response.
My first post talked about 1170 calls and 1195/1200 call credit spreads. The 1195/1200 spreads were the lowest level of credit spreads remaining, and fortunately the smallest group. I actually had a decent number of 1170 calls in action which expired solidly in the money on Friday.
Quite a while ago, Mark Wolfinger and I had a discussion about this, and I came to the conclusion that he was right about putting a couple of calls "inside" the position so that the written call spreads were further away from the money than the ones purchased. This has proven useful on both the call and the put side over a number of months.
Choosing the correct strikes for this is very important. If you choose correctly (or predict correctly!!), then what happens is that the written spreads expire worthless, or nearly so, as in the case of the 1195/1200's, and definitely so in the case of the 1225/1235 spreads, AND the bought calls expire in the money. This means gravy, plain and simple because the value of the expired long ITM SPX options of course becomes cash in your account and the credit spreads brought in cash in the first place.
The caveat on this is don't be too greedy. If you get too close to the money on your credit spreads, you can get your fingers burnt fairly badly because you can't protect yourself 100% against major market moves and still collect credits. Fortunately, in my case, the 1195/1200 spreads were actually not enough to kill off all the value of the 1170's even if the market had gone past 1200. I must admit that I cut it too close for comfort this month and will be backing it off for the December expiry. If the market drops, and I think there is a good chance of that happening, I might wish I had cut it pretty close, but I'd rather be safe than sorry.