MA
You can just as easily put the product and google it. This way you don’t have to even get out of your seat. and still find the cheapest place to get it. Many BJ’s are kosher on the eastern sea board so their baked goods maybe cheaper then your kosher bakery. Day old bread and other baked good are reduced in price but still taste fresh. Likewise, because some types of kosher meat are reduced on Sunday because they want to get rid of it.
Education
One of the ways to get out of the poorhouse is by getting a degree. If you can there are many programs such as CLEP or AP. If you take their exams and pass you will get college credit. Also if you went to Bais Medrash or Seminary you can get college credits for it. CLEP Exams cost $80.00 per exam but are usually worth 3 credits. AP Exams cost $91 but reduce it by $29.00 for low income students. The advantage is that you can use older books which are free if you can borrow them from the library or cheap because they are a year or two old. But it requires dedication you must study every night in order to be ready for the exam. You can go online and watch videos of college courses and then take the exam,
Since you are poor you will qualify for a lot of student aid. Only take grants not loans. If you live in NYC you can register with CUNY college and your grants should cover all of your tuition and even pay for some of your books. With your degree hopefully you will get a good paying job.