http://www.menards.com/main/paint/paneling-planking/paneling/tileboard/dpi-flat-white-wall-panel-white-melamine/p-1473392-c-8176.htm
Cheap white board! I got a few of these on my wall.
Love them even for just reminding myself of everyday things, along with working on problems. Lots of colored markers also.
http://www.amazon.com/Coffee-Shrub-CLEVER-Clever-Dripper/dp/B0047W70GY
+ a grinder and kettle and lots of good coffee -find a local roaster you wont regret it-
You can use that thing for tea also if cofffee isn't your thing. For 20 $ its a great purchase. .
For electronics a lot of things have been mentioned but a nice set of headphones is great, I like to listen to instrumental music-jazz, clasical w/e- when reading/working/relaxing. So a nice headphone set is great.