Hmm thinking about it :-
4 man dome tent, at my folks.
2 man canvas tent, inherited from my dad, at my folks
2 man old canvas/ fly sheet [I think it was french] at my folks
2 man dome tent, in the loft
2 man fly sheet from a charity shop, in the shed
polish poncho tent, in a backpack
home made half shelter poncho thing, in the loft
various tarps [mostly cheap builders tarps, couple home made and a few poncho], in various bags
bivi bag - now used as a big waterproof stuff sack.
Big 9 man monstrosity I hoped would help get the missus out with me
and a hotel for when the wife does come
Hmm I think I have too much, certainly more than I use these days - but then I have kids so they may come in useful yet...