The 10 - 16 year olds at our community cycling project, Pedal Power Kennington, choose a bike to do up that they'll get to own when they've finished. Masking tape with the person's name is put on the frame so we remember that bike is allocated and who's working on it.
It surprises me how many bikes have tape one moment, then none the next with some chancer asking to work on the 'unallocated' bike.
So now we have to take photos of the bike with the tape on so we double check before allocating bikes and relabel it correctly if the tape's disappeared.