Actually, I don't have a ton of problems forgetting what's been suggested before -- my big blocker is having to reject the suggestions that have been proposed over and over and over and won't ever get implemented because it isn't technically possible or doesn't fit with our vision for the site. Explaining why is usually one of those "slightly annoying tasks that I put off for a bit when the notification comes in", which then turns into one of those "really embarrassing tasks that have been sitting for forever and are therefore something that is very behind and needs to be caught up on". :D