It might work out cheaper to just book a session of sunbed use in those tanning booth places as many offer deals the more you book and allow you to "safe tan" i think that means you can tan every second day so you dont burn your skin. Again im not qualified in this topic but from info from friends this is usually how its done. It would probally work out cheaper than forking out for a predictably huge electricity bill that the sun bed would generate. Also i know these tanning places open latish as my friend went after work most days around 6.30ish or during her lunch break.Otherwise get yourself booked in for two sessions of spray tan, it looks great,is 100% safe (as long as you dont get a reaction!) and lasts about two weeks, got one done for a wedding and it was fab...looked like id been on a two week holiday in the sun! Much cheaper than the sunbed too!!