The reason most of us lose remote controls is because they don't have a specific place to go. They might end up on a coffee table, an end table, or just slide behind the couch. Redditor actusual was sick of losing remotes, so he stuck them to a coffee table with Velcro.
The idea is that when the remotes have a home to return to they're more likely to end up there. The Velcro gives them an out-of-the-way spot where they won't get moved around. You'll still have to remember to put the remote back where it belongs, but at least it has a specific spot to go to. What's your best tip for keeping track of wayward remotes?