With regards to wedding bands, does the bride-to-be buy her own ring and the groom-to-be buys his own ring?  The reason I ask is because I read somewhere where someone asked what they should engrave on their groom-to-be's ring. So... I'm not sure how that works. 
side note:  thanks Knotties for answering so many of my questions as of late.  You can tell I'm in the thick of it and have no idea what's going on.  LOL!