Hello. Something came up today that I'm not sure how to deal with. A long and wordy explanation follows, but the quick question I have is this: without using sessions, or anything else tied into transactions / persistence but tied to the current visitor, how can I write to a very small 'messenger' store to send messages like "Item Deleted" or "3 Items Added to Cart" that, when read back from, removes those message. I just tried a cookie based implementation, but since the request and response track cookies differently, I can't selectively write and retrieve/clear these messages as easily as I'd like. The important thing about these messages is that (a) the user sees them only once, and (b) they can survive redirects. I've done this using a session based utility that I wrote a long time ago, but the session based one has some problems with a new feature I'm trying (interfering with "undo last") and I'm not sure that doing so much frequent writing / clearing to a ZODB storage is such a good thing.