On a budget purchase a "label protector" such as the one I will link below (or purchase a less expensive Amazon version/offering for 50% less) and use your sink (soft/plastic tub inserted) to clean your records.
The first step (prior to rubbing/brushing the LP with anything) is to protect the label and then flush out the grooves with warm water.
You can do this with just the water tap or you can get more involved by using a repurposed WaterPik (dental cleaner) or something similar that increases the water flow/pressure.
If you use a brush prior to the flush you will be brushing possibly hard contaminants against the vinyl surface (and if they are harder they will scratch/damage it).
The above paragraph describes the main error in many established vinyl cleaning methods (flush, flush, flush before applying any brush).
As far as inexpensive DIY cleaning solutions go Google it (mine is a simple Google find).
I also use filtered tap water for final rinsing and as far as comparing the PUR filtered water from my tap to distilled water from the grocery stores (by evaporation) the filtered water has less/no visible contaminates VS the the distilled water -w- visible contaminates.
DeKay