I like my planners to be sturdy, have a month to month calendar, a lot of space for each days to do's, along with inspirational quotes and pretty images throughout. Here are some good ones I found that offer that and more.
In the past I've found some good ones at Marshalls too, so don't rule places like that or TJ Maxx out. I will probably check there before placing an order for one of the above. Personalized sounds great, but less than $15 sounds good too.
Do you have a favorite planner or are you more into the paperless computer/phone calendars?