Large Daiso store in Kyoto
 

Been to various Daiso stores (in the US, KIX airport, Singapore), all relatively small, but heard that there is a large (3-story?) one in Kyoto. Ms BH loves to browse, so would appreciate info on location & hours.

Hi,
There's a Japanese site that lists the store locations.
There's an English site too, but it is not as informative, not to say useless.
http://www.daiso-sangyo.co.jp/

If you can manage the Japanese site you can sort the stores by size and figure out where the biggest one is located. I took a quick look but didn't recognize the addresses for the biggest ones. I'm not so familiar with Kyoto.
Or just ask your hotel staff.

The largest one that is relatively central is this one near JR Nijo station.

There's a fairly big one in the shopping center behind Kyoto station as well.