The smallest strips I cut are 1 1/2" wide. 2 1/2" is pretty standard for most piecing and can be used in a variety of different patchwork patterns. I will save strips in ever width up to 6/ 1/2". They can be cut down if necessary. I just finished putting together 20 blocks that I strip pieced yesterday and today. My plan is to set this center into a white 4" boarder then build another alternating area of the same 8 1/2" blocks to go around it then another 4" boarder of white and finish off the quilt. I am thinking about doing a prairie point finish to use up as many 4 1/2" squares as I can make with my remaining scraps and with what is already cut.
This quilt is an inspiration from discussions that have been going on here for the last couple weeks.
The most I organize strips is just that as strips. Oce a piece is less than 12" I put it to a smaller container or baggie.
I don't have a specific quilt in mind or size when I am sorting strips. They can become a 4 patch or a number of different pieces in a quilt that start with different sized strips or just plain strips. The quilt I am doing now is an 8 1/2" block that takes narrow to wider strips on a diagonal.
I also find 2" strips handi for smaller blocks.