q. how long is the information valid? sequence and cause and effect.1. see the seller’s listing for full details. vision to give our customers the best service care and satisfaction we believe they deserve. i don't recall seeing anything about this in the instructions. you can book out cleaners on weekends or bank holidays if necessary. and i can see other people wanting us to get over it too. end the night in the most classic way possible! c++ is powerful and gives a lot of freedom. always willing to help with tips’n tricks, good luck. 