If you like working with geometric patterns and scraps of fabric, English paper piecing is a very portable, low-commitment hobby! An Altoids box with fabric shapes, scissors, needles and thread holds hours of fun.
You don't need all the supplies on offer. An Elmer's School Glue stick works as well (better, IMO) than specialty glue sticks. You also don't need pre-cut cardboard shapes. Simple hexagon templates can be found free on-line. "Hexies" make a good start for projects. Freezer paper and hand basting is my favorite method.
Here's a fun project I have done:
If you’ve never done English paper piecing or EPP this is an easy project to start with. For this I printed a sheet of 1 1/4 inch hexagons (pdf). You will only need 8 templates. How to make E…
You do need decent eye sight and hands and wrists that won't cry too loudly after a bit of needle work.
Dollar Tree has a small rotary cutter and a small cutting mat at $1.25/each. Generally, I don't use cheap tools, but this seems like a good option if you're not sure you like this kind of thing. (Dollar Tree also has some decent little cross stitch kits for a grab-n-go craft fix.)
Of course, you do need decent eye sight and hands and wrists that won't cry too loudly after a bit of needle work. (Alternatively, you can shelve the perfectionism and spend some quality time with an ice pack.)
One more thing: If you are quilting with cotton, a wooden wallpaper roller can give you a nice press without an iron.