I absolutely hate waiting ages for my nail varnish to dry! I always find that the 'tacky' stage (when nail varnish isn't quite dry and can be smudged or imprints can be made) can last ages. I always seem to end up with a fabric imprint on my nails or a nail mark unless I run my nails under a cold tap! It might sound strange, but it seems to harden my nail polish and 'dry' my nails. I told a few friends about this a few years ago and they now do this to quicken the drying process when they paint their nails.
Give it a try - let me know if it works for you!