I stream games, even though there's nobody really watching it (lmao, i'm a horrible streamer), but it forces me to plan and play thru my backlog. Unless if the game is just not resonating, or gave me motion sickness, I do get thru most games, or at least significant chunk of them.
By the end of the game, I'd write a short review (i used RankOne due to twitch integration), just to get my feelings about the game out.
Also with this, I rarely buy games on full price unless I really want to, seeing the backlog dampens your urge to buy new stuff.