I tend to use a lot of dry shampoo, not just for refreshing hair between washes but also to add texture and volume when creating a messy or tousled look.Girlz only is by far the best dry shampoo I've tried- it smells fresh but not too strong or perfumey and leaves my hair looking nice and clean without the strange white/grey powdery look that Bastiste gives me. I currently have this dry shampoo in the fragrance 'Dawn til Dusk' (they also do 'Party Nights' and 'Hazy Days') and I actually like the packaging a lot more than Bastiste's retro style bottles.
The only edge Batiste does have over Girlz Only is that they also do little bottles of 50ml that are great for popping in your handbag. Girlz Only is quite a bit cheaper than Bastiste- £1.50 for 150ml vs £2.99 for 200ml.
Girlz Only Dry Shampoo is available online or from Tesco.