For a long time I would avoid the one off customers like the plague 'No sorry, I only do regular cleans' and so on. I am starting to struggle with this mentality, are we pre-programmed as window cleaners to only take on contract cleans? This past couple of months I have started to mellow on it a bit. Just yesterday I get an email to go quote a one off, less than a two minute drive, 4 front windows 4 back windows, 2 doors. Spray Ubik liberally, scrub up with brush rinse till all bubbles are gone. 15 minutes later £30 extra in my pocket for the day. Asked customer why she only wants a one off and she told me she only bothers having them done once a year so booked her in for next year as well. I think there is great potential in the 'one off' spring clean types. 'Ok missus the windows and frames is £40, shall I do the insides at the same time? ....can I quote you for the conservatory whilst I'm here......and I notice you have some weeds there growing out the gutters......' Could turn into some nice day rate work. In fact I will be changing my web site this week to 'One off and contract cleans' as not everyone out there want's to commit to a monthly deal but I reckon a few of them will once they get to know you.