Startups live on white boards. But if you go to Office Depot or Staples you will discover big white boards are really expensive. We did some pricing, and discovered to entirely cover one of our office walls with white boards would have been a more than thousand dollars (nothing gets the ideas flowing better than an entire wall you can write on). I am way too cheap to pay that much.
Then I discovered Thrifty White Tileboard from Home Depot. A four foot by eight foot sheet of tileboard from Home Depot is $10.97 (a comparable size white board from Staples is about $400). It works like a charm. Rumor is you get some ghosting after a year or so, but it's so cheap you can just replace it then.
That's our tech start up tip for the day. Photos are be forthcoming.