These remarks are prompted by the "Oil spill" thread which lead to a discussion on units of volume.
The litre (or liter of you prefer) has, IMHO, a lot going for it as a general purpose unit for most ranges. Its main advantage is the avoidance of the superscripted 3 for plain text messaging. It is also easily converted to cubic metres when that is required (just divide by 1000). I have to say I don't like the dam³ that has been suggested. I don't see why the megalitre or ML won't do just as well. We then have: 1 m³ = 1 kL 1 dam³ = 1 ML 1 hm³ = 1 GL 1 km³ = 1 TL Simple yes?