I used filter socks on my first setup 10 years ago...once I started to convince myself what a PITA they are, I went without and never looked back.
Mechanical filtration IS important, but socks arent the best way to go. I use the regular filter sponges where my water flows into my 'sump' area and it takes out any large particulate that makes it through. Rinse out the sponge with RO once a week and you're good to go. no more clogging socks...dedicated loads of laundry...it's just time wasted and not completely necessary, IMHO.