I pay hourly,pay starts at the first job. I currently hav 4 parttimers and one advantage of parttime is they are always fresh . also you are not dependant,somebody starts slackin or not turnin up,just get one of the others
go with your gut feeling when interviewing,sure you need a worker,but ask loaded questions,such as "do u smoke?"
if answer is "what,cigarettes?" , chances are they are dope smokers ,in my experience they don't work well.
Another thing to look out for are secret hand signals,if you meet them on the street and they are making thumbs up/thums down or 3 finger gestures to cars that drive past,they are dealing in summat,or buying regular dodgey items.
I put ads out in shop windows near my home, then filter the phone calls, a good sign is somebody who sounds a tad dozy , a bad sign is somebody cocky who has done every job under the sun including fitting kitchens in Israel or similar. best types are college lads or girls . I have 1 college lad and 2 girls plus a middleage woman