I do not have card sleeves (READ: too lazy to put them on)...
Sleeving your cards probably won't be as bad as you think . I started playing a little after Guilds was released and I had all of the expansions before I sleeved anything. I thought it was going to be this agonizing, day-long project, but it really wasn't. Just make sure you have the space and organization so that when you start sleeving you can get in a rhythm. Minimizing stops and starts is key.
Seconded. Sleeving all of the cards does not take that long. Throw on a movie or a couple episodes of a show and you are golden.
Watch an episode of Dexter and every time he stabs someone, forcefully shove a Dominion card into a sleeve. Who needs VR, that's plenty of interactivity with your favorite TV show right there. You can save money, get the VR experience, AND have protected Dominion cards!