"The Commission is concerned with the effect of 'other insurance' clauses on the interests of the insured. Insureds are detrimentally affected by uncertainty over the effects of individual provisions and combinations of different provisions. More important is the fact that some 'other insurance' clauses have the effect of limiting the insurer's liability to its insured. In such a case, the insured's protection may be compromised or lost. While they affect the interests of insureds in this manner, 'other insurance' clauses have little independent value for insurers. To the extent that they are intended as a protection against fraud, they are ineffective. At most, such a clause might operate as a disincentive to claiming the same loss twice under different policies. The same effect could be achieved by a clear warning to the insured that he is entitled to claim, under the policy concerned and under any other insurance, no more than his actual loss. To the extent that 'other insurance' clauses are designed to ensure that an insurer becomes aware of the existence of other insurance so that it may claim contribution in the event of a loss, the same aim could be achieved by asking appropriate questions in the proposal and claim forms."