Delete after specific date

I have model with DateTimeField where I store date when object will be
deleted.

class Something(models.Model):
...
end_date = models.DateTimeField(editable=False, blank=True,
null=True)

after some request my app store future date in that field using:

something.end_date = datetime.datetime.now() + timedelta(days=60)
something.save()

Now I need the easy way to delete it from db when this date come and
need advice from you. To use cron job to check all once a day or to
check on every queryset like

today = datetime.datetime.now()
for_delete = Something.objects.all().filter(end_date >= today)
for x in for_delete:
x.delete()

I expect a lot of page requests so I don't like example below. Does
anyone have some better way to suggest?

Thanks

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