I fired up Firefox and opened slashdot
I may only have 4GB of RAM but I still find it unacceptable that Firefox and Firefox alone will lock up for 20 seconds when opening a web page. Not take 20seconds to load, but physically become unresponsive. I mean what is it doing? Having an army of Viet sweatshop workers sitting there with calculators figuring out how to use those 90MB?
Memory may not be everything but if as the GP said you're using 10MB to print "Hello World" you're doing something very very wrong.