I am wondering how often you guys (and gals) run through your kata and kihon.

do you warm up and make a training session out of it throughout the week or just run through the motions when you can?

How helpful is training in front of a mirror?

I go through all my katas at least once a day, gotta get that muscle memory down.

I practice kata and kihon every day. I also teach it every lesson at my dojo.

Mirrors are useful, but I actually watched someone perform a kata once with their head tilted a certain way, because they always looked in a mirror when practicing.

I practice daily. I stretch every morning. I go through katas before I leave for work, when I get to work before I punch in, on my lunch break, when I get home from work, and various times throughout the evening. If I'm watching TV commercials are a great time to run through katas, when I'm cooking, if I'm waiting I'm either stretching or going through kata. Sometimes if I find myself in a bathroom in a store or restaurant and I have enough room and nobody is around. For me the only questions are 1, do I have room. 2, do I have time?

I practice Kata and Kihon every other day. I go to the gym twice a week and practice with my Sensei every friday night. I try and get a couple of runs in every week too.

I practice it at home but my dojo practices it once a week...

It just depends. Right now, I'll do some easy walk-throughs at times while at home. At class, I'll do some prior to starting for warmups. Sometimes, if I work the afternoon shifts, I'll spend an hour a day or every other day working hard on forms.

I know 22 kata, and I practice them all once a day when I wake up.

I didn't have access to a mirror for years, and belatedly realize it could have benefitted me/given good feedback.

As for forms, I practice daily, but only run through a complete set of forms during a two hour class. Daily practice usually starts as a run through forms, but I basically use it as a minder function...I stop and focus where I know I need to work on something in particular.

I practice at least some of my kata every single day--typically, I try to get through Naihanchi, Passai, and Kusanku. Although it may not be as efficient, I just practice things as the mood strikes me throughout the day, rather than setting aside time specifically to practice and make a workout out of it. My kihon I do practice outside of class, but not on any sort of regular basis--I help with 3-6 basic classes per week, and I get extra kihon practice at that time.