Amazon.com: SCHRLING No Drill Daylight Roller Shade Tension Inside Mount Expansion Window Blind,Custom Size:20”-90”W,20”-98”L : Home & Kitchen
Amazon.com: 100% Blackout Roller Window Shades, Window Blinds with Thermal Insulated, UV Protection Waterproof Fabric, roll up and Down Blinds for Home and Office (White - 20" W x 72" H) :
Recommendations for blocking the last of the light gap around the blind : r/DIYUK
How to Fix Springs in Roller Shades and Adjust Spring Tension
Cordless Roller Blinds Won't Go Up Or Down | Lifestyle BlindsLifestyleblinds blog
How to Make a DIY Roller Shade for Your Window!
Easy Ways to Fix Roller Blinds That Keep Getting Stuck - DF Blog