Alceste
Vagabond
I pretty much have just the one friend, so $450 is my entire Christmas budget :/.
The lawn work thing sounds like it'd work pretty well, especially as it gets colder, but I'm pretty sure the campus already has workers to mow it's lawn... maybe there's houses within walking distance from campus, how would I go about applying for such a job?
I don't know where you get this impression. It's certainly not true.
I haven't seen any such stores. Where do I go to hear about these?
Lawn mowing and dog walking you would go directly to potential clients (aka local houses) with a flyer or business card, drop it in every mailbox in walking distance, put signs up on local bulletin boards, take out a classified ad and ask everyone you know and everyone you meet if they need a dog walker / lawn mower or know anybody who does. You could also look in the classifieds yourself and call everyone providing these services and ask if they need any help. For a job on campus, your school's web site probably lists opportunities for students.