Abstract: A method of improving computing efficiency of a computer may include receiving instructions for performing an overall calculation comprised of a plurality of sub-calculations. Whether a sub-calculation has been previously performed may be determined and the sub-calculation may be identified as a prior sub-calculation. Whether the prior sub-calculation was calculated with a time-dependent data set having original data may be determined. Whether the time-dependent data set has changed data since the prior sub-calculation may be determined. The sub-calculation may be performed to include a new sub-calculation with the changed data to obtain changed sub-calculation results. The overall calculation may be performed with the changed sub-calculation results. If the time-dependent data set does not have changed data, an original sub-calculation result based on the time-dependent data set having the original data may be identified and utilized in the overall calculation instead of performing the new sub-calculation.

Abstract: The present invention is a portable personal waste disposal unit. The personal waste disposal unit includes a container having a top surface with a removable cap covering an opening. The opening is oval in shape and leads to an interior of the disposal unit. The container includes a tissue and privacy sheet. The privacy sheet may be used to cover an individual using the personal waste disposal unit. The disposal unit may be sized to fit under an automobile seat. When using the disposal unit, the cap is removed from the top surface, thereby allowing the individual to deposit bodily waste through the opening into the interior. The container is strong enough to hold the weight of an individual. After use, the cap is placed over the opening. The disposal unit may then be discarded as desired by the user.