The best thing you can do is preventative: don't play after eating unless you at least rinse your mouth pretty thoroughly, and don't drink beer and then play without doing the same (rinse with a sip of water, or something, at least). If you like to have a beer, or martini or whatever, when you play, I understand (I also enjoy these, in a general sort of way -- I'm enjoying a glass of wine, now) but you will have sticky pads and it will be your fault, not the pad's.
I no longer remember what their name was, but there was a company that used to sell a powder in a small, white, plastic bottle with a red label that you would squirt over that pad as a non-stick treatment. That powder was terrible. It would work, and then it would end up caked on the pad contributing to sticking. BUT, the cloth squares that came with those were better than cigarette papers or dollar bills or any of the other "old man's remedies."
I have my own solution. I'll share it publicly some day if I ever see it noted here or on another saxophone forum.
It will have to wait to be shared publicly til I do. I know that comes off badly, but I've learned the hard way that what I share today may come back to haunt me tomorrow.
Lighter fluid is a better choice than vinegar as a cleaning agent. Vinegar will increase the verdigris effect on your toneholes (they are bare brass, most likely, along their "rims").
I would tend -- for old, pre-contemporary, leather pads -- to recommend Neet's foot oil as a cleaner/solvent, even though it isn't really either of those -- followed by Olde English or something else that won't cause verdigris to grow on your toneholes (that will will make the pads stickier, in the end).
I still use Neet's Foot oil on occasion, for really old saxophones with really old pads, when I want to bring the pads to life for, say, one last play before I overhaul, so that I can have some idea what to recommend for resonators, etc., before I begin the overhaul.
My recommendations are limited because, as I mention, I have a solution that is sort of "proprietary information" at this time.
I'm not trying to be annoying. The situation is inherently annoying. If you come see me in person, you get to know what I'm not sharing here. I share it with anybody that walks through my door if it comes up, but with the request that they not share it on the web.