Sharper

I take a lot of screenshots for various reasons but have always been too pikey to pay for a proper screenshot app like SnapzPro, preferring instead the usual Apple-Shift-4 routine.

But I am often disappointed by the low quality results as they system is converting them to jpg at 60%. 

I realise that with the likes of TinkerTool and Cocktail you could change the screenshot file format and I have found another simple way here.