I use both LT and GR for different things: GR is a record of what I've read, LT is a record of what I own. Among other things it makes it relatively easy for me

I use both LT and GR for different things: GR is a record of what I've read, LT is a record of what I own. Among other things it makes it relatively easy for me to shelve my books by LoC call number which isn't possible at all with GR.