I've decided the best I can do for now is to always add new stock between 5pm and 10pm UK time, which narrows the window down a little. I hope that helps somewhat. We'll see how it goes. The shop is still learning, I keep finding new elements I can add to the site, such as a 'chat' box, but I know when I go on a site and a 'chat box' pops up asking if they can help, I usually click off the site! I was looking at the application that shows how it works and after a bit of browsing the various possibilities, a chat box came up and asked if I needed help...I clicked off! So, I don't think I'll add that for now.
I did try having my tweets showing for a while, but as I use twitter so much for stuff unrelated to Pelham Puppets, I decided it probably wasn't what you wanted to read!