That's a good link soundman....
IMO that's a great price for what it is. (Even cheaper than Arduino LOL!)
It's a pity more aren't into circuits though - stuff like this is often the cascading of "blocks" such as timers & edge triggers.
I'm about to do "a ~2 minutes after power off" power-hold for my voltmeter using a FET & cap (wot?! Not a 555??). But that could trigger and edge detect etc etc (but then use (schmidt) inverters or logic gates etc).
It's different when one has a cheapish "standard" PIC or uPC platform - then you just program it and plug it in (maybe add a few external FETS, relays etc). But until you overcome those "overheads", it's not practical.
Otherwise to find versatile yet cheap modules like that Micro Shutdown controller... PRICELESS! (Well, under $50 anyway.)