E Bay has some small enough for most home layouts. They almost look like sample packs and are about $3- $5 here is one random listing - I do not know this vendor or have ever dealt with them- it is listed to for illustration only Search No Ox ID ratled http://www.ebay.com/itm/NO-OX-ID-Co...707?pt=LH_DefaultDomain_0&hash=item4ad5b51a7b
To clean my track I use 99% alcohol on a piece of felt folded several times. I moisten the felt then go over the track changing the contact surface a few times. I also use a PECO track cleaniing eraser too.
I found enough in one tube at Sailors Supply to last me and three or four more mrr a lifetime! $12.95/8 oz tube plus $9.00 s&h. Shoulda looked here first.
Just to be clear, No-Ox is not a cleaner. It is applied to track that is already clean to prevent future corrosion and oxidation. Thoroughly clean your track first, THEN apply No-Ox. It greatly reduces the need for future cleaning. The amount of No-Ox required is tiny: 1/4 teaspoon for 500 feet of N-scale track. You will need a bit more -- but not much more -- for larger scales. The temptation is to use much more No-Ox than necessary. Don't do it! This is a case where more is NOT better. If you use too much No-Ox, you will be very disappointed and will have a painstaking clean-up job ahead of you. No-Ox has many uses other than model railroading, so you need to look online for how to use it on your layout. See the following for model railroad application instructions and other useful information: http://www.nscale.net/forums/content.php?32-Track-cleaning-Linn-Westcott-and-No-Ox Here is a discussion about the benefits of No-Ox from TrainBoard: http://www.trainboard.com/grapevine/showthread.php?147928-Another-No-ox-thread Amazon sells No-Ox ID "A Special" (its full name) in a 2 ounce tub for $12.95 with free shipping. That's enough No-Ox for hundreds of model railroads. - Jeff