Where do I shop for 'all'???

Hi folks. When I first joined here yesterday I was able to click on the big window on the main page that said "Ready to go shopping? I was able to see 'all' the items for sale in all categories by clicking on 'Fashion' or 'vehicles', etc. That first window on the main page rotates to feature different things on SL, and now I haven't seen that 'Ready to shop?" window again. When I try to shop now I just get specific vendors and not the ability to specify 'all' items of a particular nature...where the heck do I go to view ALL the items available, regardless of who made them. It was so cool - page after page of flying vehicles by different developers, etc...now I can't seem navigate to it. Help? (Please.)