I've always found feet to be a bit disturbing sometimes. They're often smelly and many people do not take care of them, resulting in not only a bad smell, but a bad visual when you have the misfortune to glance down. There are ways however to have great looking toenails and that way people won't groan when they look down at your feet!
You don't have to get pedicures every week to have great looking toenails. (But if you want to and can afford to, then go for it!) The key to great looking toenails is simple hygiene. My first rule is to always keep your toenails trimmed. Long toenails are never attractive and should be avoided at all costs. It takes five minutes to clip your toenails and you should take those five minutes and make sure that your toenails are of an appropriate length.
Along with clipped toenails comes the simple principle of filing them and keeping them well shaped. This process only takes a few more minutes after clipping, and with a simple nail file you can shape your nails and make them look more uniform. Another thing you should do is keep your toenails and your feet clean. Wash your feet in the shower and take the time to clean out any foot or shoe gunk that may gather underneath your toenails. Again, this only takes a few minutes and it will make a huge difference.
You don't have to paint your toenails, but if you decide to, make sure you do a clean job of it. It doesn't look very elegant to have toenails with nail polish slipping off onto your actual toe. Make sure the nail polish stays on the nail and that you take the time to make it look sleek and neat. A sloppy nail polish job will render the otherwise manicured state of your toes insignificant, because people will only be able to focus on your bad nail polish job.
Having great looking toenails isn't a feat of the rich and famous, but rather a pleasant result of good hygiene and occasional attention. Your toes don't actually need a lot of attention to look great, but that small amount of attention you do give them will make all the difference and you can enjoy great looking toenails all the time!