Fuel costs, water costs, sewage costs, how much does the store make and what are the costs of running the store, coin operated washer/dryer/showers.

You can buy a test kit at a hardware store but it will generally only tell you what is on the top layer and most lead paint has been painted over many, many times.

It depends on the house, subfloor condition (if tile is going to be a lot of prep, I'll do waterproof floating or try to clean existing tile, sometimes laminate sheet on cheap flips) and current home store prices for most of my choices. 

Looking for alternatives to Home Depot and Lowe’s and other big box stores for a minor rehab I’m doing.

@Samuel S. there are also specialty stores in most states that offer parts, supplies, and materials designed specifically for mobile homes.

They just opened an Amazon warehouse in the nw area so I'm sure things will be picking up there as well.

Vio doesn't have extensive requirements like regular direct deposits like some online banks require, my one beef with them is their transfer limits are low so I don't store lots of money there because it is slow to get it out if needed quickly.

I like the receipts feature on the app (you can take a picture using the app and it will store it in the cloud).

They aren't very expensive and they usually carry them in the pet stores or online. 

If you don't have family or friends who can teach you these skills, local home improvement stores may offer free classes in it.