I used to get my bangs & layers reshaped every 2-4 months, but I've been without a stylist since November.
I haven't had anything other than the very outermost ends trimmed & my bangs reshaped at a quickie/cheapie place. I didn't know if I wanted to get a Deva cut or get relayered, & I didn't know if I could trust the quickie/cheapie place with anything else.
So it's been 5 months & counting since I got layers. I just have to find a new stylist, one I can trust to do a great job without me having to wait a month or more for an appointment, & inexpensively.