The combined revenue of the 4 largest US companies hit a record $1.1 trillion over last 12 months...
Apple $AAPL: $325 billion
Microsoft $MSFT: $160 billion
Amazon $AMZN: $419 billion
Google $GOOGL: $197 billion
That's larger than the GDP of all but 14 countries.
Data: @ycharts
@RevShark Maybe try DraftSight - a much cheaper alternative CAD. If just thinking about brainstorming, Lucidchart might be good for quick sketching on various devices.