Given the amount of additional items they add during events makes me think that they're overly conservative with external item limitations. I'd like to have "full plot" items too, like being able to change the grass in my garden for a meadow, then a single item pathway from the gate to the door. Two items & the garden would look even better than it can now with 20!

Certain items shouldn't count towards the limit either. I know some don't, not sure which, but the following shouldn't:

Post box
Gardening plots
Aetheryte
Chocobo Stables
One of each level Dummy (so 1, 50, 60 & 70 IIRC).
Wall/house glamour (chimneys etc).

Those are things that most people *need* in their gardens.