Waxing the slides is a good solution, you will have to repeat it periodically. I have fixed wooden drawer slides (if the wood slides or drawer sides are in good enough shape) by using a pvc strip to create a semi-permanent sliding surface. A good source is "V-flex" type window and door weatherization gasket strips. These are flat pvc strips that are sold to weatherize doors and windows. One half of the strip has an aggressive adhesive; you fold the strips in half to create a weatherproof seal. I cut the non-adhesive backed side off and use the remaining side with the adhesive on either the drawer bottom or dresser slide. You will need to clean the wood surface of any dust and wax before applying the strip. Either maintaining a wax or pvc slide will also eliminate the erosion of both wood drawer bottom and slide that happens to old drawers over time. Eventually the wear will cause the drawer to tilt backwards when closed and can even wear away clear to the drawer bottom panel.

"If you are going to seal the drawers, seal all surfaces, inside and out. And if necessary, inside the carcase too. Clear shellac - alcohol-based - dries in a flash and the odor goes away in an hour or so." THIS. Shellac can even be used to seal in the smell of fire damaged wood that remains large enough to remain in use. Repairing fire damage can be a real PITA to remove ALL the smell. I had a customer that had removed a plaster wall and instal drywall after afire. They failed to spray the studs with shellac though. Withing a few months the smell was apparent again. After removing the drywall and covering the studs and back of the other wall with shellac there was no smell even before the drywall went up.

Sorry, I said hinges when I meant drawer slides at one point in the post. Thanks for asking for pictures. When I took some crappy iPhone pics I could easily see some of the hinges that need adjustment. For example, in this one you can see clearly that the slide on the one side is much closer to the front than the other one: This would account for the fact that it doesn't soft close (further back side is not catching the thingy-do in the front on the bottom of the drawer) and for the fact it sticks out a bit, since I'm guessing the one is too far forward for a full close. Tried to get that too: On another one, the closer inspection showed me that the issue was the slide wasn't level. Since the bottom of the drawer lines up with the one below but the top sticks out. This one is really horrible and baffling to me why they wouldn't fix it right then: My husband is thinking that the guy wanted to go home and since he knows someone will have to come back out with new doors, he just left all this stuff (they ordered all our full length wall cabinet doors an inch short, which they swear has never happened before, so they don't know yet if they screwed up the measurements or the door company screwed up. I'm having a lot of supposed firsts, like the faucet and sink company that says I am the first person ever to get a magna-tite Delta faucet with the magnet missing - lucky me).

What I don't like about the soft close mechanism is the weird little scootch it makes when pulling in that last small distance. It's has a revolting, horror-movie quality for me, like the receding tongue of a nightmare-animal. (I can hardly write about it w/o shivering - an overeager cab salesperson wanting to demonstrate them can send me practically running out of the showroom!) But aside from that sick-making movement, it seems to me, to be the almost perfect representation of the sheer laziness of the world we live in now. How much effort does it really take to close your own drawers correctly (and quietly)? Is everyone's life so raddled by stress or desperate haste that they can't restrain themselves from slapping the drawers back? And it also fails my standard of desirable simpleness. I agree that they are appealing to the gadget-minded - when we first saw them in a kitchen showroom, my DH could hardly wait to disembowel a drawer assembly to figure it out. But I'll keep closing the drawers in our house, by hand, thank you. (I have no idea what a soft-close toilet is and, may it please the Gods, I'll never encounter one.) This is the one thing I don't want to upgrade to. If only I could acquire a similar, visceral, distaste for Marmoleum, high CFM vent fans, and expensive English faucets; my kitchen reno budget would be much less strained. L