Hey folks I have been functioning with about 30-40GB (out of 750) of free memory on my MacBook for the last month or so. I know this is not recommended, and for good reason, but suffice to say it had to be. It gets worse; I only rebooted my machine once in that time. This is because the first (and only) time I did so, under such dire memory conditions, the machine wouldn't reboot properly until about the third or fourth attempt. For this reason, among others (concerns about bad fragging) I also ran no updates during this period. I am now back to more reasonable circumstances with about 400GB free, fully updated, and am wondering if there are any recommended procedures I should run in an effort to tidy up any consequences from this period. I know Mac's do not typically need to be defragged, but I also know they shouldn't be pushed past 80% of their memory. I would love some insight from real fundis about what the consequences of this period may be for my machine's performance, and what you might do in my position. Current performance is not terrible, but it is not as slick as it should be for a 2GHz i7 MBP with 8GB ram. As always, many thanks!