Add an item slot specifically for wards.

Kind of like the trinket, except only for stealth and vision wards that you buy. Sometimes you want to buy wards (or even NEED to buy wards) but you don't have enough inventory space for whatever reason (late game you may be full build or earlier on you may have a couple pieces of an item but can't complete it).

So why not make a space JUST for wards. That way we can take some of the load off of supports and we don't have the excuse "there was no space in my inventory."