They say the best camera is the one you have with you. It’s one of the reasons I abandoned my SLR camera in favour of one-handed point-and-shoots while Thing2 still wanted to hold my hand everywhere we went.
I’ve found the same holds true for art supplies. I have a drawer full of watercolour supplies, but lately, it’s the $6 purse-sized watercolour tin and purse-sized journal that have been winning the title of ‘best art supplies’.