Cheap, but effective, options: ensure all hardware matches (brushed nickel is a safe bet), light fixtures, light/electrical plates are not dingy yellow... and make sure the front door and landscaping are inviting.Remember, like attracts like.

We converted the bottom unit from a 2/2 with office into a 4/2, updated the flooring, paint, bathroom, kitchen, added pantry, new paint on the cabinets and hardware.

I fact I think that's a phrase people invented just to shame you into taking out your wallet. 

You'll find a lot of great people both on BP and in the real life Baltimore REI Community (there are also a few sharks out there, so think twice before pulling out your wallet).  

When a banker starts talking about building a "relationship" with you, cover your wallet with one hand, close all of your accounts with them and find someone else to do business with.

Stay away from the “guru” sales-pitch events - they rarely increase your investment knowledge, they merely empty your wallet!

Keep your wallet/credit cards at home when you go as it sounds so enticing to take their course and have someone hold your hand for a year to learn ropes. 

On a typical rehab, I replace all tubs/showers, toilets, sinks, faucets, shower hardware, garbage disposal, etc.My savings by going with the supply houses and Amazon.com is typical several hundred dollars, PLUS for less money, I'm getting higher end finishes.For what it's worth, I used to get everything at Home Depot because it was easy.

I have a way of getting a flood of potential buyers on the phone and opening their wallet (90% want rent to own or need credit help).

My last one (3 bdrm, 1 bath, 2 car SF house) ran me about 16k for everything (i.e. new flooring, drywall repair, scraping popcorn ceilings off and re-texturing, new ceiling fan, new fridge, landscaping, all new interior & exterior paint, some new electrical, foundation repair, termite treatment, complete gut & remodel of bathroom, two new doors and all new door hardware through the house, new water heater, etc etc etc).