I always shoot RAW.
Sometimes I will shoot RAW to CF + Small JPEG to a separate SD card, if say the client is on location or I think that there might be some use in displaying it immediately, say to download onto an iPad.
I made a schoolboy error the other day. I forgot to reset my camera to RAW after I had been testing something and then went into a client shoot forgetting to set it back to RAW.
I had a group shoot of 20 people which went fine. Except for the fact that 3 delegates were very late and missed the shoot. (Trying to herd CEO's is like trying to nail jelly to a wall!). Anyway, this is normally no problem at all, I just photograph the stragglers afterwards in the same area and them photoshop them in the group.
This easily done in RAW since even if the light changes in the interval, you can easily alter the colour temperature to match the original. Highlights are also much easier to recover in RAW and you can get more detail from the darks too. In JPEG shooting - this can become a nightmare!
It took me 10 times longer to get the balance correct and photoshop them in. Always shoot RAW. Always. Unless you're taking snappy snapps for newspapers and paparazzi style stuff - then speed is critical, JPEGS can be useful here. (Along side RAW)
What with memory being so cheap these days <£50 32GB's - there's no reason not to. Lots of benefits and no downsides. Just my 2pence worth
Good luck with the snapping, just keep at it.