A jigsaw that takes a week to finish should not claim the dining table for a week. A portable work surface and two sorting zones let you stop mid-puzzle and come back to the same arrangement after dinner.
Measure the completed puzzle first
Check the finished dimensions on the box and choose a rigid board with a margin for your hands. Before starting, decide where the board will rest flat when you need the table. Pick up the empty board and check that you can carry it comfortably through the doorway.
Sort by tasks you can finish
Use one tray for edges and another for a recognisable block of colour or lettering. The Blue Blossom set works as a visual pair. If pieces blend into the artwork, lay a sheet of plain paper inside each tray so their shapes are easy to see.
Create a pause routine
Keep unfinished clusters on the board and return loose pieces to their sorting areas. Photograph the reference image and your layout if other people work on the puzzle at different times. Put the trays beside the stored board so the next session starts with the pieces already sorted.