St. Tropez Gradual Tan Mousse is the best self tanner I have come across. I have very fair skin and this mousse gives me a lovely healthy looking glow. The mousse is so easy to apply and sinks into the skin quickly so no hanging around to get dressed. I don't really mind the smell and it definately doesn't linger unlike other self tans I have used.
My top tip would be to exfoliate well before applying so that you get an even coverage. Also, if you are not using mitts to apply the mousse make sure to wash your hands thoroughly immediately after applying. I usually apply before I go to bed as it is so quick and easy to absorb into the skin.
St Tropez is one of the more expensive brands on the market but in my opinion it is definatlely the most natural looking for paler skins. If you are looking for a really dark tan it may not be for you although I am sure it comes in light to dark shades so there will probably be a shade to suit darker skin tones.
For me, this keeps my skin looking very natural and sunkissed and nobody would know how pasty white I really am!
I can honestly say I could not be without this product in my bathroom, all year round.