For many years, I worked in a department that had a weekly update meeting where we'd go around the table and tell what we did the previous week.  Also, we had to submit a written monthly report.
 
I had been keeping a daily log in Ecco and found that it was easy to extract a list of weekly and monthly items.
 
Here's how I did it:
 
I kept all my notes in a tab I called "Tasks" and made the "Done" date column visible.  Every time I made an entry, I would press <CTRL>M while on the entry to date-stamp it in the Done column.
 
To isolate the past week's entries, I went to Tools / Filter View / New and set up a filter called "Weekly" and added a filter so that items would display where Date "is greater or equal to"  the date of 7 days ago, like "2/7/2016".
 
To isolate the past month's entries, I set up a separate filter called "Monthly" and added a filter it so that items would display where Date "is greater or equal to"  the date of the beginning of the month, like "2/1/2016".
 
 
Then, to get a nice printed listing of the active selected filter, I went to File / Print Catalog / New and set up an "Events" Catalog with these settings:
 
Range - Print All Items
Item Options - Skip Hidden Sub Items, Print Item Icons
Columns - Print Columns, Skip Minimized Columns, Custom Columns (with the "Done" column selected)
 
Once the above was setup, getting a weekly or monthly list required only two steps:  set the "weekly" or "monthly" filter, then print the "event" catalog.
 
Of course, once finished printing a log, I'd go back to Tools / Filter View and select Ignore Filter to see all the entries, regardless of "Done" date.
 
HTH!