Greatly inspired by @khaire-traveler's wonderful subtle worship series, which can be found here.
Watch sunrises and sunsets
Use natural light to light up your space/do tasks in
Have sun, light, ram, boat, falcon, hawk, scarab beetle, or sky imagery around
Say good morning or goodnight to him
Go on walks on sunny days
Destroy depictions of A/p/e/p this can be as simple as drawing it on a piece of paper and tearing it up
Get involved with your government (vote, go to local meetings, protest, write/call a leader, etc.)
Learn about and uphold Ma'at
Help out or mentor others, especially children
Create something related to him or his attributes
Light a candle or incense that reminds you of him (safely)
Try to start each day fresh
Freely express your emotions in healthy ways
Stand up for yourself; assert your boundaries
Tidy up your space and keep it clean
Use a planner or otherwise organize your day
Take charge/leadership roles in parts of your life
Donate to food banks, medical debt forgiving organizations, wildlife organizations and other causes you think help life
Learn about Egypt, especially its pharaohs
Do things to help local wildlife like hanging up suet feeders, building bat boxes, etc.
Spend time out in nature, particularly on sunny days
Carry a picture of him in your wallet, pocket, phone case, etc. or as a phone or computer wallpaper
Make a playlist or listen to songs that remind you of him, or you think he'd like
Reflect at the end of the day (or whatever time period that works well for you) on what went well and what you'd like to work on
Pick and/or press flowers (only from areas you're allowed to)
Do something hard or challenging, especially if you've been putting it off, or it needs to get done
Make a collage/mood board/Pinterest board/similar collection of photos and images you associate with him, especially if some of the images are your own
Invest in your future; set up a savings account, work on getting more exercise, find or spend time working on a hobby that brings you joy, etc.
Practice truthfulness and keep your promises
Keep a self-growth journal; write down things relating to self-improvement, how you're feeling, goals you're working towards, etc.
Learn about plants and animals, especially those that are native to your area or Egypt
Practice good sun safety; wear sunscreen, sunglasses, drink plenty of water etc.
Take care of a plant, animal, or other person
Spend time with friends and family (blood or chosen)
Wear a piece of jewelry or other clothing item that reminds you of him
I may add more to this list in the future. Suggestions are always appreciated.