These 500ml. stainless steel bottles are all the rage, and now you can have your own Bold bottle.  They keep cold drinks cold and hot drinks hot for hours, thanks to the double-walled, vacuum insulation.  Use it for water, tea, coffee… you name it.  (They really do work, coffee stays steaming hot for an absurdly long time.)   The screw-on stainless steel lid is leak-proof too, so you can throw your bottle in your bag without worrying about spills.  

These are hand-wash only; putting them in the dishwasher will wreck the outside of the bottle!