Does the grocery, hardware, or any store for that matter let you know when they are going up on their price...nope. Dont waste time making up signage to inform customers of the pending increase and posting it for 30 days, youre just loosing more revenue. Just do it!!! I just raised prices at a site i took over last april on the IBA, changed all the packages, added ceramic and graphene to the top wash and bumped all the others down, made a completely New menu sign, and had the wife do the voice over on the paystation this time... the only complaint ive gotten is why the dryer didnt turn on on the lower packages, my response is did you read the menu? The Dryer is only on the top package, they want the dryer they can pay for it imo.