I use Dupont's Teflon Chain Saver aerosol (http://www.webbikeworld.com/t2/dupon...ain-lube-2012/
) both at home and on the road. Typical travel day is 300 - 350 miles so I lube each day when the chain is warm. Can't keep a chain too lubed in my opinion.
Recently a can lasted 11 days & 3700 miles. This is clean stuff - doesn't fling off. Sometimes hard to find so in a pinch I'll get the Multi-Use Teflon at Lowe's or most hardware stores.
The little 4 ounce bottles are hard to use, wasteful & messy. Stick with the aerosol.