The car that batts always stops

yet again my batt always stops due to me not driving again my last batt lasted me a lot longer and this is the same brand so i dunno but 4-5 days with out driving is okay but longer then that it shuts off and i just got home so i couldn't drive it so for now on i'm setting rules for myself!maybe i should drive more ....take a class or something cause this can get annoying after my 5-6 time this year living at this new place bad luck some say?well i don't know but cheers.