As a boss, how can I make sure all my employees feel valued?

Trust them. Don’t micromanage

By showing them how much you appreciate them. A "well done" from you goes much farther than you can imagine.

Fight and win to pay them fair wages compared to comparable positions in the area and based on education, experience, and performance.

Know what they're doing, whether the load is reasonable, and manage it. Just one of many things

Do your job! Be a leader, not a boss. Set the example you expect to see from your employees. Show them you're not afraid/worried/upset over getting the worst of the cleaning done.

I have a few tactics - some work for certain employees but not all: 1) schedule regular 1 on 1s and NEVER miss or be late to them. Send an email ahead of the meeting with what you'd like to talk about. Leave time for the employee to bring up their own topics. 2) give your employees challenging work that they may not succeed at. If they see they're being challenged they'll know they're doing well at the basics. Of course, give guidance if they ask for it or if they do not succeed. 3) Make them feel valued and noticed as individuals, not just as employees. Ie take an interest in their extracurriculars, but dont be creepy about it. 4) Hold them accountable. You don't want to only interact with an employee on negative matters but if you let things slide too often, they'll think they are not noticed and will stop caring altogether. 5) Offer career advice. Let them know you dont expect them to work for you in this role forever and that you want to help them grow and succeed.

A simple “Thank You” goes a long way. Also, not walking around like a smug tyrant helps.

Constant and precise feedback to each employee can go a long way.