Linux Lite 1.0.6 - Question about CRON trim weekly

[T1125P]

Hi all, I saw the directions on how to set up a "daily" cron TRIM.  But how do set up a weekly? I have always used the discard entry with noatime, but I see it's not so good to use. I have tried LL 3.0 while it's awesome, my netbook seems a bit slower. I find LL 1.0.6 is the best fit for it. I Have tried so many distro's of Linux but 1.0.6 feels so awesome Any help would be appreciated on the weekly trim Thanks all and awesome job on LL 3.0