How to avoid showering twice when cycling to and from work? I'm at the stage where even a light cycle to/from work raises an appreciable sweat. 

I shower when I get into work,  but I'm sweaty when I get home too. How do I avoid showering twice a day?
Very good antiperspirant for the morning ride can work, dressing as cool as possible and changing clothes when you get in. Everyone has an upper limit for effort/distance/temperature for which this works, and if you work at the top of a hill, forget it. 

Slowing down for the last bit can help. You may even be able to take your helmet off for the last couple of hundred metres. This can make a big difference but only you can judge the riding conditions. 

I didn't find that baby wipes made for a good freshen up.