Portable seat organizer

A portable seat organizer comprising:

• a main body having an upper part coupled to a lower part by a middle part, the upper part including a first upper surface defining a first plane and including a plurality of retention receptacles;
• an extension plate slidably coupled to the upper part and including a support slot and a support tab, the extension plate slidable with respect to the upper part in a direction parallel to the first plane and away from the lower part to form an upper extension of the upper part, the extension plate comprising a locking tab that includes a spring member and a protrusion biased by the spring member into engagement with one of the plurality of retention receptacles for securing the extension plate in a desired position relative to the main body, and wherein the spring member is integrally formed as one piece with the extension plate and the locking tab;
• a first accessory including an accessory tab configured to engage the support slot;
• and
• a second accessory including an accessory slot configured to engage the support tab.

A portable seat organizer comprising:

• a main body having an upper part joined to a lower part by a middle part, the upper part having a first upper surface opposite a second upper surface, the first upper surface defining a first plane and including a plurality of retention receptacles, the lower part having a first lower surface opposite a second lower surface, the first lower surface defining a second plane, the first and second planes being parallel and not coplanar;
• a pair of guide rails affixed to the first upper surface of the upper part of the main body;
• an extension plate slidably coupled to the pair of guide rails and including a support slot, a support tab, a locking tab comprising a spring member and a protrusion facing the first upper surface of the upper part of the main body wherein the spring member is integrally formed as one piece with the extension plate and locking tab, the extension plate slidable with respect to the upper part in a direction parallel to the first plane and away from the lower part to form an upper extension of the upper part, wherein the spring member biases the protrusion such that the protrusion engages one of the retention receptacles to maintain the extension plate in a selected position with respect to the main body;
• a first accessory including an accessory tab configured to engage the support slot;
• a second accessory including an accessory slot configured to engage the support tab;
• and
• an armrest stabilizer strap configured to affix to the upper part of the main body and pass around an armrest with the upper part and the lower part extending away from the armrest in opposite directions.