કામળ ભીંજાય તેમ ભારે થાય.

kāmaḷa bhīṁjāya tēma bhārē thāya.

Literally: As the blanket gets wet, it becomes heavier.
What it means: Problems or responsibilities become more burdensome the longer they are neglected or allowed to accumulate.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1923) ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1921) · read from the scan by machine — the Gujarati itself is unchecked · English is machine-made and nobody has checked it yet

Heard it differently, or know we've got the sense wrong? Tell us — that is exactly the kind of correction this needs.