Not sure if I made this up in my head or not, but did I read that this helps recovery time? And if it does or doesnt, how bad would it be for me to train lets say chest and bi's one day and then do bi's and tri's the next?

My work outs normally are one of the following

Back/tris
chest/bi's
legs
shoulders traps/ w/ bi's or less often tri's (if I did bi's the day before)
bi's/tri's

so I kinda run into problems in which work out to do next as I only do legs once a week. Also I take a break from weight training once ever 6 or 7 days.