Rather sadly I have been watching/rewatching what feels like all the advent calendar unboxing/preview videos on YouTube.
One thing I have found useful is Cosmetopeia’s insistence on dismissing anything not full-size as ‘GWP - not going to count it!’ I have found myself muttering that to myself as I look at the various calendars on offer, (either trying to find one to buy/or attempting to talk myself out of it, depending on how I am feeling in that moment!)
It’s saved me from buying a few candidates so far, (although I do still like SpaceNK).