Adding to what Kahili said, it looks good on your resume to have a job for a long time. For example, if you sent in a resume for a job and you only worked at your previous job for a month, you probably won't be hired because they can't count on you to commit. If you worked at your previous job for a year, you will probably get hired because they know that you might stick around and keep them from having to go through the hiring process for awhile. So think about that when you want to quit your job. And IF you do, have another job already lined up for you, so you don't lose money in the process.
Thanks, guys. If I did quit I wouldn't even put the job on my future resumes. But I'm going to give the job another month to get used to it, and toward the end of the month ask when I might get the wage I asked for in my application. Until then I will just be happy I have a job :)
Long enough so you get the hang of things. Don't make a decision when you're first learning how to do things because you may like the job more later. And it's good to learn new skills that you can add to your resume for future jobs.
A customary probation period is 3 months - at a full time job that's usually the length of time within which either the employer or the employee can decide if it's working out.
And if you work long enough and your boss likes you, you can use them as a reference for future jobs.
As hard as jobs are to come by, probably wisest to not leave until you have a solid 2nd lined up