Letter walk about
Walk:
Do a letter walk where you choose a letter (perhaps your initials) and find, collect, or photograph things that relate to whatever letter you picked. I might choose L, and get pictures of lemons, light, leaving, etc.
Walk abstract:
Do a similar thing to the above, but maybe a bit more abstracted: smell (of the local bakery), shine (of sunlight on puddles), something stressless, etc. Maybe add something more illustrative to each post - a sticker, a drawing, a photograph, etc.
Explore:
Explore where you live, and try to find something starting with each letter of the alphabet. For example: A = art gallery, B = book store, and so on, or even the letters of your name.
Lookalike:
On your walk, capture some photographs of things that look like letters/numbers but aren't.